United States      Prevention, Pesticides    EPA 738-R-94-021
        Environmental Protection   And Toxic Substances    September 1994
        Agency	(7508W)	
4>EPA  Reregistration
        Eligibility Decision (RED)
        Disodium
        cyanodithioimido-
        carbonate (DCDIC)

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          1        UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                                      WASHINGTON, D.C. 20460
                                                                           OFFICE OF
                                                                      PREVENTION, PESTICIDES
                                                                      AND TOXIC SUBSTANCES
CERTIFIED MAIL
Dear Registrant:

       I am pleased to announce that the Environmental Protection Agency has completed its
reregistration eligibility review and decisions on the pesticide chemical case and active
ingredient disodium cyanodithioimidocarbonate. The enclosed Reregistration Eligibility
Decision (RED) contains the Agency's evaluation of the data base  of this chemical, its
conclusions of the potential human health and environmental risks  of the current product uses,
and its decisions and conditions under which these uses and products will be eligible for
reregistration. The RED includes the data and labeling requirements for products for
reregistration. It may also include requirements for additional data (generic) on the active
ingredient to confirm the risk assessments.

       To assist you with a proper response, read the enclosed document entitled "Summary
of Instructions for Responding  to the RED". This summary also refers to other enclosed
documents which include further instructions.  You  must follow all instructions and submit
complete and timely responses. The first set of required responses are due 90 days from
the date of this letter. The second set of required responses are due 8 months from the
date of this letter.  Complete and timely responses  will avoid the  Agency taking the
enforcement action of suspension against your products.

       If you have questions on the product specific data requirements or wish to meet with
the Agency, please contact the  Special Review and Reregistration Division representative
Franklin Gee at (703) 308-8008.  Address any questions on required generic data to the
Special Review and Reregistration Division representative Bonnie  Adler at 308-8523.

                                                     Sincerely yours,
                                                     Louis R. True, Acting
                                                     Director
                                                     Special Review and
                                                      Reregistration Division
Enclosures

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              SUMMARY OF INSTRUCTIONS FOR RESPONDING TO
              THE REREGISTRATION ELIGIBILITY DECISION (RED)

1.  DATA CALL-IN (PCI) OR "90-DAY RESPONSE" If generic data are required for
reregistration, a DCI letter will be enclosed describing such data.  If product specific data
are required, another DCI letter will be enclosed listing such requirements.  If both generic
and product specific data are required, a combined Generic and Product Specific letter will
be enclosed describing such data.  Complete the two response forms provided with each DCI
letter (or four forms for the combined) by following the instructions provided. You must
submit the response forms for each product and for each DCI within 90 days of the date
of this letter (RED issuance date); otherwise, your product may be suspended.

2.  TIME  EXTENSIONS AND DATA WAIVER REQUESTS No time extension requests
will be granted for the 90-day response. Time extension requests may be submitted only with
respect to actual data submissions. Requests for data waivers must be submitted  as part of the
90-day response. Requests for time extensions should be submitted in the 90-day response,
but certainly no later than the 8-month response date. All data waiver and time extension
requests must be accompanied by a full justification. All waivers and time  extensions must be
granted by EPA in order to go into effect.

3.  APPLICATION FOR REREGISTRATION OR "8-MONTH RESPONSE" You must
submit the following items for each product within eight months of the date  of this letter
(RED issuance date).

      a.  Application for Reregistration (EPA Form 8570-1).  Use only an original
application form. Mark it "Application for Reregistration."  Send your Application for
Reregistration (along with the other forms listed in b-e below) to the address listed in item 5.

      b.  Five copies of draft labeling which complies with the RED and current regulations
and requirements.  Only make labeling changes which are required by the RED and current
regulations (40 CFR 156.10) and policies.  Submit any other amendments (such as formulation
changes, or labeling changes not related to reregistration) separately.  You  may delete uses
which the RED says are ineligible for reregistration. For further labeling guidance,  refer to
the labeling section of the EPA publication "General Information on Applying for Registration
in  the U.S., Second Edition, August 1992" (available from the National Technical Information
Service, publication #PB92-221811;  telephone number 703-487-4650).

      c.  Generic or Product Specific Data. Submit all data in a format which complies
with PR Notice 86-5, and/or submit citations of data already submitted and give the EPA
identifier (MRID) numbers.  Before citing these studies, you must make sure that they meet
the Agency's  acceptance criteria (attached to the DCI).

      d.  Two copies of the Confidential Statement of Formula (CSF) for each basic and
each alternate formulation.  The labeling and CSF which you submit for each product must
comply with P.R. Notice 91-2 by declaring the active ingredient as the nominal
concentration.  You have two options for submitting a CSF:  (1) accept the standard certified
limits (see  40  CFR §158.175) or (2)  provide certified limits that are supported by the analysis
of five batches.  If you choose the second option, you must submit or cite the data for the five
batches along  with a certification statement as described in 40 CFR §158.175(e).   A copy of
the CSF is enclosed; follow the instructions on its back.

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      e.  Certification With Respect to Data Compensation Requirements. Complete and
sign EPA form 8570-31 for each product.

4.  COMMENTS IN RESPONSE TO FEDERAL REGISTER NOTICE Comments
pertaining to the content of the RED may be submitted to the address shown in the Federal
Register Notice which announces the availability of this RED.

5.  WHERE TO SEND PRODUCT SPECIFIC PCI RESPONSES (90-DAY) AND
APPLICATIONS FOR REREGISTRATION (8-MONTH RESPONSES)

By U.S. Mail:

      Document Processing  Desk (RED-SRRD-PRB)
      Office of Pesticide Programs (7504C)
      EPA, 401 M St. S.W.
      Washington, D.C. 20460-0001

By express:

   Document Processing Desk (RED-SRRD-PRB)
      Office of Pesticide Programs (7504C)
      Room 266A, Crystal Mall 2
      1921 Jefferson Davis Hwy.
      Arlington, VA 22202

6.  EPA'S REVIEWS—EPA  will screen all submissions for completeness; those which are not
complete will be returned with a request for corrections.  EPA will try to respond to data
waiver and time extension requests within 60 days. EPA will also try to respond to all 8-
month submissions with a final reregistration determination within 14 months after the RED
has been issued.

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REREGISTRATION ELIGIBILITY DECISION DISODIUM
         CYANODITHIOIMIDOCARBONATE

                     LISTC

                   CASE 3065
               ENVIRONMENTAL PROTECTION AGENCY
                OFFICE OF PESTICIDE PROGRAMS
            SPECIAL REVIEW AND REREGISTRATION DIVISION

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                         TABLE OF CONTENTS

DISODIUM CYANODITHIOIMIDOCARBONATE REREGISTRATION ELIGIBILITY
      DECISION TEAM  	i

EXECUTIVE SUMMARY	 vi

I.     INTRODUCTION	1

II.    CASE OVERVIEW	2
      A.   Chemical Overview  	2
      B.   Use Profile 	2
      C.   Regulatory History	4

III.   SCIENCE ASSESSMENT	5
      A.   Physical Chemistry Assessment	5
      B.   Human Health Assessment	6
           1.    Toxicology Assessment	6
                 a.    Acute Toxicity  	7
                 b.    Subchronic Toxicity	7
                 c.    Developmental Toxicity 	7
                 d.    Mutagenicity  	8
           2.    Exposure Assessment	8
                 a.    Dietary Exposure   	8
                 b.    Occupational and Residential  	8
           3.    Risk Assessment	11
                 a.    Dietary  	11
                 b.    Occupational  	11
      C.   Environmental Assessment	13
           1.    Environmental Fate   	13
                 a.    Environmental Chemistry, Fate and Transport  	13
                 b.    Environmental Fate Assessment	13
           2.    Ecological Effects	15
                 a.    Ecological Effects Data	15
                       (1)    Terrestrial Data	15
                       (2)    Aquatic Data	15
                       (3)    Non-Target Insects Data	15
                       (4)    Non-Target Plants Data  	16
                 b.    Ecological Effects Risk Assessment	16

IV.   RISK MANAGEMENT AND REREGISTRATION DECISION	17
      A.   Determination of Eligibility	17
           1.    Eligibility Decision  	18
           2.    Eligible and Ineligible Uses  	18
      B.   Regulatory Position  	18

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            1.    Tolerance Reassessment	18
            2.    Effluent Discharge/Aquatic Risk Rationale	18
            3.    Endangered Species Statement 	20
            4.    Labeling Rationale 	20

V.    ACTIONS REQUIRED BY REGISTRANTS 	21
      A.    Manufacturing-Use Products	21
            1.    Additional Generic Data Requirements	21
            2.    Labeling Requirements for Manufacturing-Use Products	21
      B.    End-Use Products  	22
            1.    Additional Product-Specific Data Requirements	22
            2.    Labeling Requirements for End-Use Products	22
      C.    Existing Stocks  	23

VI.  APPENDICES	25
      APPENDIX A. Table of Use Patterns Subject to Reregistration 	27
      APPENDIX B. Table of the Generic Data Requirements and Studies Used to
            Make the Reregistration Decision	33
      APPENDIX C. Citations Considered to be Part of the Data Base Supporting the
            Reregistration of Disodium Cyanodithioimidocarbonate	41
      APPENDIX D. List of Available Related Documents  	49
      APPENDIX E	53
            PR Notice 86-5	55
            PR Notice 91-2	73
      APPENDIX F. Generic Data Call-in  	79
            Attachment 1. Chemical Status Sheet 	95
            Attachment 2. Generic DCI Response Forms Inserts (Form A) plus
                  Instructions	99
            Attachment 3. Requirements Status and Registrants' Response Forms
                  Inserts (Form B) plus Instructions	  103
            Attachment 4. List of Registrant(s) sent this DCI (Insert) 	  109
      APPENDIX G. Product Specific Data Call-in	  Ill
            Attachment 1. Chemical Status Sheet 	  125
            Attachment 2. Product Specific Data Call-in Response Forms (Form A
                  inserts) Plus Instructions   	  127
            Attachment 3. Product Specific Requirement Status and Registrant's
                  Response Forms (Form B inserts) and Instructions	  133
            Attachment 4. EPA Batching of End-Use Products for Meeting Data
                  Requirements for Reregistration	  137
            Attachment 5. EPA Acceptance Criteria   	  145
            Attachment 6. List of All Registrants Sent This Data Call-in (insert)  Notice
                   	  159
            Attachment 7. Cost Share Data Compensation Forms, Confidential
                  Statement of Formula Form and Instructions  	  161
      APPENDIX H. FACT SHEET	  171

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 DISODIUM CYANODITHIOIMIDOCARBONATE REREGISTRATION
                     ELIGIBILITY DECISION TEAM

Office of Pesticide Programs:

Biological and Economic Analysis Division
Rafael Prieto
Phyllis Johnson

Environmental Fate and Effects Division

Mary Frankenberry
Brinson Conerly-Perks
R. David Jones
Norm Cook
Al Vaughan

Health Effects Division

Linda Kutney
Irving Mauer
Winston Dang

Registration Division

Amelia Acierto
Mary Waller
Valdis Goncarovs

Special Review and Reregistration Division

Bonnie Adler
Kathy Davis

Office of Compliance Monitoring
Biological Analysis Branch
Biological Analysis Branch
Science Analysis and Coordination Staff
Environmental Fate and Groundwater Branch
Environmental Fate and Groundwater Branch
Ecological Effects Branch
Ecological Effects Branch
Chemical Coordination Branch
Toxicology Branch I
Occupational and Residential Exposure Branch
Registration Support Branch
Registration Support Branch
Antimicrobial Program Branch
Accelerated Reregistration Branch
Accelerated Reregistration Branch
Beverly Updike

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Office of General Counsel:




Pesticides and Toxic Substances Division




Kevin Lee                               Pesticides Branch




Office of Water:




Permits Division




Donna Reed                             Water Quality and Industrial Permits Branch
                                          11

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                   GLOSSARY OF TERMS AND ABBREVIATIONS


AE          Acid equivalent

a.i.          Active Ingredient

ARC         Anticipated Residue Contribution

CAS         Chemical Abstracts Service

CSF         Confidential Statement of Formula

DRES        Dietary Risk Evaluation System

DWEL       Drinking Water Equivalent Level (DWEL)  The DWEL represents a medium
             specific (i.e. drinking water) lifetime exposure at which adverse, non
             carcinogenic health effects are not anticipated to occur.

EEC         Estimated Environmental  Concentration.  The estimated pesticide concentration
             in an environment, such as a terrestrial ecosystem.

EP          End-Use Product

EPA         U.S. Environmental Protection Agency

FDA         Food and Drug Administration

FIFRA       Federal Insecticide, Fungicide, and Rodenticide Act

FFDCA      Federal Food,  Drug, and  Cosmetic Act

GLC         Gas Liquid Chromatography

GRAS        Generally Recognized As  Safe as designated by FDA

HA          Health Advisory (HA)  The HA values are used as informal guidance to
             municipalities and other organizations when emergency spills or contamination
             situations occur.

HOT         Highest Dose Tested

LC50         Median Lethal Concentration.  A statistically derived concentration of a
             substance that can be expected to  cause death in 50% of test animals. It is
                                         111

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                  GLOSSARY OF TERMS AND ABBREVIATIONS
LD
   50
LDlo

LEL

LOG

LOEL

MCLG



MP

MPI

MOE

MRID


N/A

NPDES

NOEL

OPP

PADI

PAM

PPE
usually expressed as the weight of substance per weight or volume of water, air
or feed, e.g., mg/1, mg/kg or ppm.

Median Lethal Dose.  A statistically derived single dose that can be expected to
cause death in 50% of the test animals when administered by the route indicated
(oral, dermal, inhalation).  It is expressed as a weight of substance per unit
weight of animal, e.g., mg/kg.

Lethal Dose-low. Lowest Dose at which lethality occurs

Lowest Effect Level

Level of Concern

Lowest Observed Effect Level

Maximum Contaminant Level Goal (MCLG)  The MCLG is used by the
Agency to regulate contaminants in drinking water under the Safe Drinking
Water Act.

Manufacturing-Use Product

Maximum Permissible Intake

Margin Of Exposure

Master Record Identification (number).  EPA's system of recording and
tracking studies submitted.

Not Applicable

National Pollutant Discharge Elimination System

No Observed Effect Level

Office of Pesticide Programs

Provisional Acceptable Daily Intake

Pesticide Analytical Method

Personal Protective Equipment
                                        IV

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                  GLOSSARY OF TERMS AND ABBREVIATIONS

ppm         Parts Per Million

PRN         Pesticide Registration Notice

Q*!          The Carcinogenic Potential of a Compound, Quantified by the EPA's Cancer
             Risk Model

RED         Reregistration Eligibility Decision

REI         Restricted Entry Interval

RfD         Reference Dose

RS          Registration Standard

TD          Toxic Dose. The dose at which a substance produces a toxic effect.

TC          Toxic Concentration. The concentration  at which a substance produces a toxic
             effect.

TEP         Typical End-Use Product

TGAI        Technical Grade Active Ingredient

TMRC       Theoretical Maximum Residue Contribution

TLC         Thin Layer Chromatography

WPS         Worker Protection Standard

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EXECUTIVE SUMMARY

             The U.S. Environmental Protection Agency (hereafter referred to as the
       "Agency") has determined that the uses of disodium cyanodithioimidocarbonate
       (DCDIC) as currently registered will not cause unreasonable risk to humans or the
       environment and these uses are eligible for reregistration. Although there is some
       concern about potential effects to aquatic organisms exposed to the effluent resulting
       from the industrial use of DCDIC, the Agency concludes that the discharge of effluent
       containing residues of DCDIC will not generally cause unreasonable adverse effects on
       the environment. The Agency's Office of Pesticide Programs (OPP) and Office of Water
       (OW) will share information that will improve the regulation of this biocide's use at
       specific  sites across the country and will identify any new, unanticipated adverse effects
       information that would affect the national registration status of this biocide. The Agency
       is requiring confirmatory data on chemistry, hydrolysis, and mutagenicity.  Additionally,
       the use of personal protective equipment is required to reduce risks of developmental and
       acute toxicity for those who handle DCDIC products.

             DCDIC is used as an industrial bactericide and slimicide. It is registered for use
       in food processing water systems, oil-field systems,  cooling water systems, sugar mills
       and paper mills and as a formulating technical material.

             Before reregistering the products containing DCDIC, the Agency is requiring that
       product  specific data, revised Confidential Statements of Formula (CSF) and revised
       labeling be submitted within eight months of the issuance of this document. These data
       include product chemistry for each registration and acute toxicity testing. After
       reviewing these data and any revised labels and finding them acceptable in accordance
       with Section 3(c)(5) of the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA),
       the Agency will reregister a product. Those products which contain other active
       ingredients will be eligible for reregistration only when the other active ingredients are
       determined to be eligible for reregistration.
                                           VI

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I.      INTRODUCTION

              In 1988, FIFRA was amended to accelerate the reregistration of products with
       active ingredients registered prior to November 1, 1984. The amended Act provides a
       schedule for the reregistration process to be completed in nine years.  There are five
       phases to the reregistration process.  The first four phases of the process focus on
       identification of data requirements to support the reregistration of an active ingredient
       and the generation and submission of data to fulfill the requirements.  The fifth phase
       is a review by the Agency of all data submitted to support reregistration.

              FIFRA Section 4(g)(2)(A) states that in Phase 5  "the Administrator shall
       determine whether pesticides containing such active ingredient are eligible for
       registration" before calling in data on products and either reregistering products or
       taking  "other appropriate regulatory action." Thus, reregistration involves a thorough
       review of the scientific data base underlying a pesticide's registration.  The purpose of
       the Agency's review is to reassess the potential hazards arising from the currently
       registered uses of the pesticide; to determine the need for additional data on health and
       environmental effects; and to determine whether the pesticide meets the "no
       unreasonable adverse effects" criterion of FIFRA.

              This document presents the Agency's decision regarding the reregistration
       eligibility of the registered uses of DCDIC.  The document consists of six sections.
       Section I is the introduction.  Section II describes DCDIC, its uses, data requirements
       and regulatory history.  Section III discusses the human health and environmental
       assessment based on the data available to the Agency.  Section IV presents the
       reregistration decision for DCDIC.  Section V discusses the reregistration requirements
       for DCDIC.  Finally, Section VI is the Appendices which support this Reregistration
       Eligibility Decision.  Additional details concerning the Agency's review of applicable
       data are available on request.

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II.    CASE OVERVIEW

      A.     Chemical Overview

             The following active ingredient is covered by this Reregistration Eligibility
      Decision:

      •     Common Name:  DCDIC


      •     Chemical Name:  Disodium cyanodithioimidocarbonate


      •     CAS Registry Number: 138932


      •     OPP Chemical Code:  63301


      •     Empirical Formula:  C2N2S2Na2

                                    Na+S'\
      •     Structural Formula:           (H^ON
             Trade and Other Names:  DCDIC
             Basic Manufacturer:  Buckman Laboratories
      B.     Use Profile

             The following is information on the currently registered uses with an overview
      of use sites and application methods.  A detailed table of these uses of DCDIC is in
      Appendix A.
             For disodium cyanodithioimidocarbonate:

             Type of Pesticide: Microbicide/microbistat (slime-forming bacteria, algae and
             fungi)

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Use Sites:
       Aquatic non-food industrial:
             Pulp/Paper Mill Water Systems
             Air Conditioner/Refrigeration Condensate Water Systems
             Air Washer Water Systems
             Commercial/Industrial Water Cooling Systems
             Evaporative Condenser Water Systems
             Secondary Oil Recovery Injection Water
             Heat Exchanger Water Systems

       Indoor food:
             Food Processing Water Systems (cane and beet sugar mills)
Target Pests:
      Aquatic non-food industrial:
             Green and blue green algae, Spore-forming and non-spore-
             forming fungi, Sulfate-reducing bacteria as Desulfovibrio sp.,
             Iron bacteria, Oscillatoria sp., Scenedesmus sp., Chlorella sp.
             Fragilaria sp., Melosira sp., Lepocinclis sp.,  Ulothrix sp.,
             Slime-forming bacteria, fungi and algae.

      Indoor food:
             Sucrose-reducing bacteria,  Odor-causing bacteria, Slime-
             forming bacteria, Leuconostoc mesenteroides and Bacillus
             stearothermophilus.
Formulation Types Registered:

       Type: End use, Manufacturing use
       Form: Soluble concentrate/liquid
Method and Rates of Application:

       Types of Treatment -
             Water treatment, Water recirculating system treatment.

       Equipment -
             Measuring container, Metering pump, Drip-feed device, and not
             specified.

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              Timing -
                    Shock/slug, Continuous feed (initial), Intermittent (slug) (initial),
                    Intermittent (slug) (subsequent), and not specified.

              Rate of Application -
                    Aquatic non-food industrial: From less than 1 up to 7 ppm active
                    ingredient by volume.

                    Indoor food: From 3 to 4 ppm active ingredient by weight.
       Use Practices Limitations:

              Higher temperatures  (up to about 65° C, or 150° F) and pH values
       below 5.5 increase effectiveness.  Do not discharge effluent containing this
       pesticide into sewage systems without notifying the sewage plant authority.  Do
       not discharge effluent containing this product into lakes, streams, ponds,
       estuaries, oceans, or public water (NPDES license restriction).
C.     Regulatory History

       Products containing DCDIC as an active ingredient were registered in the
United States as early as 1957 for use as an industrial bactericide and slimicide.
Currently, fifty-seven products are registered for use in food processing water systems,
oil-field systems, cooling water systems, sugar mills and paper mills and as a
formulating technical material. The Agency issued one Data Call-In Notice on
September 30,  1992, under Phase IV  of reregistration. Under this DCI the Agency
required data for product chemistry, toxicology,  ecological effects, and environmental
fate.

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III.    SCIENCE ASSESSMENT
       A.    Physical Chemistry Assessment

             1.     Product Chemistry

                    DCDIC is a microbicide produced by a purely synthetic process. A
             Confidential Statement of Formula and revised label are required as
             confirmatory data.  The Agency considers this information necessary to confirm
             the reregistration eligibility decision put forth in this document. The physical
             and chemical properties of the DCDIC technical grade of the active ingredient
             are summarized below:
       63-2 Color

       63-3 Physical State

       63-4 Odor

       63-6 Boiling Point

       63-7 Density


       63-8 Solubility


       63-9 Vapor Pressure
       63-10 Dissociation
              Constant

       63-11 Octanol/water
              Partition
              Coefficient

       63-12 pH

       63-13 Stability
vivid orange/strong orange

transparent liquid @ about 20 °C

pungent, like ammonia

109°C

1.2719 kg/m3 (requires verification
for consistency and be expressed in g/ml)

< 4.2 ppm in acetonitrile
< 82 ppm in octanol

<9.16x 106torr @  ~25°C
<1.89x 105torr @  ~ 35°C
<1.79x 105torr @  ~44°C

Not applicable (non-aq. product)


Not applicable (polar chemical)
13.2
Stable for 14 days under the following conditions:
ambient temperature (23°C); broad spectrum light;
stainless steel,  galvanized steel, copper metals and iron
ions.  Slight decrease in percent active ingredient

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63-14 Oxidizing and
       reducing action

63-15 Flammability

63-16 Explodability

63-17 Storage Stability


63-18 Viscosity

63-20 Corrosion
       characteristics
observed when test substance is exposed to zinc ions, with
significant decrease after exposure to elevated
temperatures, aluminum metal, aluminum and
copper ions.

Not applicable (does not contain oxidizing
and reducing agents).

Not applicable (does not contain a combustible liquid).

Not applicable (not potentially explosive).

The concentration of DCDIC decreased by 10.5% after
one year storage at RT as determined by  HPLC.

4.179cSt (4.179mm2/s)

No corrosion of packing material
detected after one year.
B.     Human Health Assessment

       1.      Toxicology Assessment

              The  toxicological  data  base  for DCDIC  is adequate  and  supports
       reregistration eligibility. Acute toxicity studies were conducted on the 32% active
       ingredient, the only formulation used for testing.

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              a.     Acute Toxicity

           SUMMARY OF ACUTE TOXICOLOGY RESULTS
MRID
41592601
41592602
42952501
NONE
41592603
41592604
GUIDELINE
81-1 Acute Oral
81-2 Acute dermal
81-3 Acute Inhalation
81-4 Eye Irritation*
81-5 Primary dermal
81-6 Skin sensitization
RESULT
LD50 = 268-386 mg/kg
LD50 > 2000 mg/kg
LC50 = 3.02mg/L
Data waived
PII=1.8
Weak sensitizer
CATEGORY
II
III
III
I
II
NA**
* Since the registrant acknowledges that theproduct(s) may be an eye as well as a dermal irritant (Tax. Cat. II),
the Agency has waived data requirements for a primary eye irritation study in rabbits (Guideline 81-4).

* * NA = Not applicable
              b.     Subchronic Toxicity

       Adequate data from a 90-day dermal study (guideline 82-3) are available (MRID
40974801).  The test article was applied for 13 weeks to the shaved backs of Sprague-
Dawley rats at doses of 0, 25, 125 or 250 mg/kg/day.  Dermal irritation (erythema) was
observed at all doses of DCDIC (i.e.,  dermal  NOEL  was less than  25  mg/kg/day), but
systemic effects (reduced  absolute  and  cumulative body  weight  gain,  and  food
consumption)  were noted only at  125 mg/kg/day and  above (i.e. systemic NOEL = 25
mg/kg/day).  No gross internal organ effects were observed at any dose.

              c.     Developmental Toxicity

       Adequate  data from two oral gavage studies  are available.  In the first study
(MRID 41009301), rats were dosed with 0, 2, 6 or 18 mg/kg/day.  Both maternal (based
on decreased body weight gain at 18 mg/kg/day) and developmental  (based on increased
skeletal variants at the same highest dose  tested) NOELs were established at the mid-dose,
6 mg/kg/day.  Hence there is no definitive  determination as to whether the developmental
effects of DCDIC as noted in this study  represent a primary  (direct fetal) effect, or if the
effects are secondary (indirect)  to maternal toxicity.

       A similar indeterminate interpretation is obtained from the results of the second
study (MRID 41009401) in which rabbits were dosed with 0, 3, 10 or 30 mg/kg/day.  The
NOEL for maternal effects  (based upon decreased activity, limb morbidity and deaths at
the mid-dose tested, 10 mg/kg/day) and the NOEL for developmental effects (based upon
increased resorption and decreased litter size at the same mid-dose) were 3 mg/kg/day, the

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lowest dose tested.  In addition, the highest dose tested (HDT), 30 mg/kg/day, produced
a 50% increase in the number of does without viable fetuses, and more severe embryo
toxicity, as manifested by decreased live litter size, with a corresponding increase in
resorption and post-implantation loss.

              d.     Mutagenicity

       The  following mutagenicity studies were reported with these results.  A Gene
Mutation Test (Ames; MRID 40425101) had negative results in Salmonella strains exposed
to toxic concentrations of up to 50-100 (A/ml, with/without activation. The Chromosome
Damage in vitro Study (MRIDs 41177901/40425102) tested positive for inducing sister-
chromatid exchanges in activated (S9) cultures of Chinese hamster cells at non-toxic doses.
The DNA Damage/Repair in vitro Study (MRID 40425103) proved negative for inducing
unscheduled DNA synthesis in primary rat hepatocytes at concentrations producing
cytotoxicity (compromising cell survival).

       Although the Agency does not believe that there is a genetic risk, confirmatory data
are required for a mammalian cells in culture forward gene mutation assay, based on the
positive result in the Chromosome Damage in vitro Study. The study is one of the three
mutagenicity tests required under the new guidelines (March, 1991) for Subdivision F,
Series 84 of Part 158. Results of the  study will be evaluated to determine whether there
is a potential heritable risk.

       2.     Exposure Assessment

              a.     Dietary Exposure

              The uses of DCDIC in  sugar beet and sugar cane  mills  are food uses
regulated by FDA as noted in  21 CFR 173.320.  A  food  additive tolerance has  been
established.  The Agency defers to FDA regarding dietary exposure.

              In addition,  a food tolerance has been established for DCDIC for food
contact with food grade paper,  paperboard (21  CFR 176.300), and adhesives (21  CFR
175.105). These uses are no longer active and are not supported for reregistration.

              b.     Occupational and Residential

       Mixer/loader/applicator  Exposure

       The  application techniques for  the soluble  concentrate/liquid include metering
pumps and measuring containers (intermittent and continuous feed and slug treatments).
There is  potential  for  mixer/loader/applicator  exposure and mixer/loader/applicator
exposure monitoring could be required.

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       Data  from  the  Chemical  Manufacturers  Association  (CMA)  Antimicrobial
Exposure Study  (MRID  41412201)  are applicable  to  the  uses of DCDIC.   The
antimicrobial exposure study and label usage information were used to estimate exposure
to mixer/loaders.

       a). The following information was used for the
             exposure assessments:

       Use                       Quantity per Treatment

       Secondary Oil             210,000 gallons (1.5 fluid oz.product per 1,000
       Recovery Water:           gallons)

       Pulp/Paper Mills or        10,000 tons (1.6 fluid oz. product per 1,000 tons of
       Cane/Beet Sugar Mills:     pulp)

       Water Cooling Towers:     5,000 gallons (3.0 fluid  oz.  product per  1,000
                                 gallons of water)
Sample calculation for water cooling tower use:

       For 3.0 fluid ounces of end-use product  (NM-35-1, containing 14.7% DCDIC
equal to 1.5 Ib. per gallon of NM-35-1) applied  to 1,000 gallons of water by metering
pump or open pouring application methods, into a total final volume of 5000 gallons, the
total poundage of a.i. added in each treatment can be expressed as:

3.0oz       X 1.5 Ib a.i./gal X 5,000 gal/1,000 gal = 0.1761b.
128 oz/gal
       b).  Estimates of exposure by pouring and meter pumping
       Data from the CMA exposure study are not chemical specific but provide exposure
estimates for certain use scenarios.  Exposure values are expressed as "Maximum Credible
Sum" which is considered a reasonable worst-case estimate of an exposure dose for a
single  day.  In general, workers may be  exposed several times a week over the first
several  weeks  when   the   water   systems   are  initially   charged  with   the
microbicide/microbistat to control the bacteria, fungi or algae population.  Following those
first treatments, to maintain the system, the antimicrobial treatments are generally on non-
consecutive days.  Total exposure is estimated at  26 days a year.

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       Assumptions:

       <  Exposure estimates assume protective clothing and equipment was
         consistent with that used during the CMA study.

       <  Dermal and inhalation exposure is combined.

       <  An individual weighs 60 kg

       <  Exposure estimate reflects one actual day of exposure.


Table 1. Pour liquid.
POUR LIQUID
Setting
Secondary Oil Recovery Water Injection
Pulp/Paper and Sugar Mills
Water Cooling Towers
MCS*
(ug/lb ai)
130
130
27130
Ibai/
treatment
3.69
0.19
0.18
BW**
(kg)
60
60
60
Daily Exposure***
(ug/kg/day)
8.00
0.40
80.00
       MCS = Maximum Credible Sum was derived from CMA Study.
       BW = Body Weight
       Daily Exposure (ug/kg/day) = (MCS X Ib ai/used) / BW


Table 2. Pump liquid.
PUMP LIQUID
Setting
Secondary Oil Recovery Water Injection
Pulp/Paper and Sugar Mills
Water Cooling Towers
MCS*
(ug/lb ai)
10
10
930
Ibai/
treatment
3.69
0.19
0.18
BW**
(kg)
60
60
60
Daily Exposure***
(ug/kg/day)
0.60
0.03
2.70
*      MCS = Maximum Credible Sum was derived from CMA Study.
**      BW = Body Weight
***     Daily Exposure (ug/kg/day) = (MCS X Ib ai/used) / BW


Post-application exposure
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       Hydrolysis

       A study, "Hydrolysis of 14C-DCDIC in Aqueous Solutions Buffered at pH 5,7, and
9," suggests that at pHs 5 and 7, the only significant degradates are thiocyanate (SCN),
with possible amounts of 3-amino-l,2,4-dithiazole-5-thione (thione).  At  pH 9,  SCN ,
thione,  and  3-amino-l,2,4-dithiazole-5-oxone  (oxone)  are  all definitely present  as
degradates. Although toxic degradates such as hydrogen cyanide (HCN) and  cyanide (CN
) were not found under these study conditions, it is possible that under some circumstances
(i.e., higher temperature  or  pHs) a different degradation pathway would lead  to  the
formation of HCN and CN".

       Based on the hydrolysis study discussed above, post-application worker exposure
to  HCN and CN at pulp and paper mills, cane or beet sugar mills is possible. However,
the Agency believes such exposure via dermal or inhalation routes would be minimal.

       3.     Risk Assessment

             a.     Dietary

             Although DCDIC has food uses (sugar beets and sugar cane), these uses are
       under FDA purview (21  CFR  173.320).  The Agency defers to FDA regarding
       dietary risk assessment.
              b.     Occupational

              Acute oral toxicity is moderately high for DCDIC (toxicity category II) and
       acute dermal toxicity is moderate (toxicity category III).  Products may also be eye
       and dermal  irritants  (toxicity category  II).  DCDIC may induce developmental
       toxicity in humans, based on developmental studies in rats and rabbits. And, there
       is concern for possible heritable effects. Section IV addresses these concerns.

              The  Agency  calculated  exposure and risk estimates for developmental
       toxicity using data provided by the CM A antimicrobial exposure study.  Estimates
       of the  margins of exposure (MOE) for the three use settings and with the "pour
       liquid" and the "pump liquid" techniques are given in Table 3.  MOEs are based
       on the exposure estimates presented above and a developmental toxicity NOEL of
       3 mg/kg/day from the rabbit study, the  more sensitive  species tested.
                                    11

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       Table 3.  Margins of exposure.
Setting
Secondary Oil Recovery Water Injection
Pulp, Paper and Sugar Mills
Water Cooling Towers
Margins of Exposure*
Pour Liquid
380
7300
38
Pump Liquid
4,900
94,000
1,100
* Margin of Exposure (MOE) = NOEL/Exposure

       All MOE  estimates  are  considered  conservative  because of the worst-case
assumptions e.g., not all workers were wearing protective clothing and equipment, and
the exposure is assumed to be 100% absorbed.  Actual dermal absorption of DCDIC may
be 10% or less according to generally available information on the properties of salts.  If
a 10% dermal absorption factor were included in the MOE calculations, all of the MOE
numbers would increase by a factor of 10.  With adjustments for risk mitigation measures
(protective clothing and equipment) and the use  of a data-derived dermal absorption factor,
the MOEs are expected to be  higher than the presently calculated values.

       The highest risk (the  lowest MOE)  appears to result from exposure to workers
during the "open pour" application of DCDIC to cooling tower water.  For this exposure
scenario, the MOE is estimated to be 38. Because of the worst-case assumptions described
above,  the probable MOE is likely to be higher than 38.  Applying a  10%  dermal
absorption factor increases the  MOE to 380.  The MOE for the same worker in the closed
delivery system of "pump liquid" is estimated to be 1100.  All other potential  worker
exposure involving DCDIC resulted in MOEs of well over 100.   Therefore,  risk of
developmental toxicity to workers exposed  to  DCDIC is  expected  to be  low when
appropriate protective equipment and clothing are used.

       Mixer/loader/applicator exposure to formulated end-use products for open pouring
uses  is  expected.   Label restrictions  for  appropriate  personal protective  equipment
(protective eyewear, chemical resistant gloves, footwear, socks, long-sleeved shirt, long
pants) are required. In addition, because of concern regarding mixer/loader inhalation
exposure to DCDIC and potential DCDIC degradates, a respirator with either an organic-
vapor-removing cartridge with a prefilter approved for  pesticides (MSHA/NIOSH
approval number prefix TC-23C), or a canister approved for pesticides (MSHA/NIOSH
approval number prefix TC-14G) is required during open pouring.

       Because post-application exposure to DCDIC is likely to be minimal, the potential
risk  for developmental toxicity is believed to be negligible.  Residential exposure and
potential risk to homeowners are not expected based on the use patterns for DCDIC,
however,  additional information concerning the  quantification of  hydrocyanic acid
                                    12

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(hydrogen cyanide, or HCN), cyanide (CN"), thiocyanate (SCN"), and all other groups
with the potential to form CN", at the range of pHs for which the DCDIC compounds are
used,  is required as confirmatory data.

C.     Environmental Assessment

       1.      Environmental Fate

       DCDIC is an industrial biocide used for controlling microbial growth in air washer
systems, industrial water cooling towers,  evaporative condensers, heat exchangers, pulp
and paper  mills, secondary oil recovery injection water, and sugar mills.  For these uses
DCDIC has potential for  environmental  exposure.  Other than these aquatic non-food
industrial uses,  all other  uses of  the  chemical are for indoor food  processing water
systems, where minimal exposure to the environment is expected.

              a.     Environmental Chemistry, Fate and Transport

       Based on DCDIC's current use patterns, the Agency required  only a hydrolysis
study.  Results of this study have been discussed above.  In summary, DCDIC hydrolyzes
to thiocyanate and  SCN, thione,  and 3-amino-l,2,4-dithiazole-5-oxone.  Because of
possible HCN and/or CN formation under  certain circumstances, the Agency is requiring
additional  data to confirm this. With the exception of the final report on hydrolysis, there
are no further data required to support the indoor uses at this time. The requirement for
hydrolysis data has been partially satisfied,  although products of hydrolysis  have yet to be
fully identified.  Additionally, the data suggest that the process of hydrolysis is rapid at
all pHs, ranging from about 2.5 minutes at pH 5 to 844 minutes at pH 9.

              b.     Environmental Fate Assessment

       The Agency would normally require extensive supporting data  for  the secondary
oil recovery use due to concerns for potential groundwater contamination.  However, the
Agency believes that properly encased and functioning injection wells will preclude contact
between materials placed down the well and any aquifer in the vicinity. Therefore, the
Agency concludes  that DCDIC will not present a hazard to groundwater from  this
particular  use and no further data pertaining to this use are required.

       For the other aquatic industrial  uses  of this chemical, many carry National
Pollutant Discharge Elimination System (NPDES) permit restrictions. The Agency has
calculated the  Tier Ic estimated environmental concentrations  (EEC) for all uses except
for pulp and paper mills.  Appropriate data to assess potential risks posed by pulp and
paper mill use will be shared with the Agency's Office of Water (OW) for uses by the
permit writer.
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       A Tier Ic EEC determines the maximum concentration that occurs immediately
downstream from an industrial (point source) discharge site.  The calculated EECs are
those for a high exposure site with a return frequency of one  in  10 years.  The  high
exposure site represents a site that would be expected to produce larger EECs than  90%
of all sites with the specified use pattern.  A one in 10 year EEC has a 10% probability
of being equaled or exceeded in any single year at a given site or, would be equalled or
exceeded once every ten years at that site on a long term average.  This is similar to the
site and frequency assumptions that are generally being used for agricultural pesticides.
EECs for a 50% (typical) site at  mean stream flow were also calculated.  EECs for all
these uses except pulp and paper mills are listed in Table 4.
Table 4. Tier Ic EECs for Disodium cyanodithioimidocarbonate
Use Site
Air Washer Systems
Industrial Cooling Towers - Group A
Industrial Cooling Towers - Group B
Industrial Cooling Towers - Group C
Industrial Cooling Towers - Group D
Evaporative Condensers
Heat Exchangers
Secondary Oil Recovery Injection Water
Sugar Mills - Group A
Sugar Mills - Group B
High Exposure Case
1.6 ppm
5.0 ppm
4.0 ppm
3.0 ppm
2.0 ppm
4.0 ppm
3.0 ppm
0.8 ppm
1.3 ppm
5.5 ppm
Typical Exposure Case
.0056 ppm
.0080 ppm
.0064 ppm
.0048 ppm
.0032 ppm
.0064 ppm
.0048 ppm
.0028 ppm
.0028 ppm
.0183 ppm
Groups within a use refer to one or more products with a similar application pattern for that use site.
       If an EEC does not exceed the level of concern (LOG), it indicates that it is highly
likely that the chemical can be discharged into receiving waters without causing  adverse
effects. If the EEC does exceed the LOG, it may indicate that the pesticide can have a
potential adverse impact on the environment.  Because Tier Ic EECs make many very
conservative assumptions and only screen the environmental fate of the pesticide, they may
significantly overestimate  the  true  exposure to the chemical.   A  higher tier EEC
calculation which more accurately reflects the fate and transport properties of  DCDIC
would likely show that the risk is less than that  reported here.  Waste water treatment
prior to discharge, restriction on discharge during low flow periods and other methods
which may be available through the NPDES permitting process and degradation and
dilution of the pesticide in the waste stream may reduce concentrations below the  level of
concern at each site using the pesticide.  All DCDIC product  labels require that discharge
of the pesticide with waste water be in compliance with an NPDES permit.
                                    14

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       2.     Ecological Effects

             a.     Ecological Effects Data

       Of three  avian studies submitted,  the  Agency has determined that two mallard
studies can be used to support reregistration of DCDIC.  Six submitted aquatic studies are
adequate for risk  assessment:  three freshwater aquatic studies and, three estuarine studies.

                    (1)     Terrestrial Data

             Based on two mallard studies, (MRIDs 00025563, 40643201)  DCDIC is
       considered practically nontoxic to birds with acute oral LD50=3211 mg ai/kg and
       dietary LC50 > 10,000 ppm ai.

                    (2)     Aquatic Data

                    Freshwater Studies

             Based on three freshwater aquatic studies,  (MRIDs 41870601, 41913001,
       41897001) this  chemical is considered no more than slightly toxic to freshwater
       fish and  moderately toxic to freshwater aquatic invertebrates.   Acute toxicity
       values are: LC50=74 mg ai/L for rainbow trout; LC50= 120 mg ai/L for bluegill;
       and, EC50 = 8.3 mg ai/L for daphnids.

                    Estuarine/Marine Studies

             Based on  the  three  estuarine  studies,  (MRIDs 43151501,  43151502,
       43151503) DCDIC is considered to be practically non-toxic to fish and moderately
       to highly toxic to estuarine invertebrates. Acute toxicity values are:  LC50= 120
       mg  ai/L  for sheepshead minnow; EC50=1.6 mg ai/L for eastern oyster;  and,
       LC50 = 0.16 mg ai/L for shrimp.

                    (3)     Non-Target Insects Data

             Nontarget  insect testing is not required  based on the use patterns  of
       DCDIC.
                                    15

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              (4)    Non-Target Plants Data

       Nontarget plant testing is not required based on the use patterns of DCDIC.

       b.      Ecological Effects Risk Assessment

              Terrestrial

       Because  of the current use patterns of DCDIC, it is not expected to be
found in the terrestrial environment at levels of concern. Therefore, risk to birds
is expected to  be minimal.

              Aquatic

       DCDIC is considered to be no more than slightly toxic to freshwater and
estuarine/marine fish, and moderately to highly toxic to aquatic invertebrates.  The
Agency has  calculated (Table 4, above)  Tier  Ic  EECs for aquatic residues
occurring immediately  downstream from industrial discharge sites except for the
pulp and paper mill use.  A stream flow screening model was used to  determine
a "high exposure case" and a "typical  exposure case" EEC for each use site.

       The Agency considers that the LOG is exceeded when the EEC value equals
or exceeds 1/2  the LC50 or EC50 for a freshwater aquatic organism. For DCDIC,
the freshwater fish LOG is 37 ppm, and the aquatic invertebrate LOG is 4.15 ppm.
Typical exposure case  EECs do not exceed LOCs for any of the use sites.  High
exposure case EECs do not exceed the LOG for freshwater fish, but exceed the
aquatic invertebrate LOG for some cooling towers and sugar mills. Based on the
acute toxicity values and the EECs provided, freshwater aquatic invertebrates may
be at risk from effluents at high exposure sites.

       Only certain use sites are associated with estuarine exposure. For DCDIC,
these would be industrial cooling towers, oil recovery sites, and pulp/paper mills.
For estuarine/marine organisms, typical exposure case EECs do not exceed LOCs
for any of the use sites.  High exposure case EECs do not exceed the LOG for
estuarine/marine fish.  The LOG for estuarine invertebrates, however,  is 0.08
ppm. This level of concern is exceeded only at the high exposure scenario for all
industrial  cooling  towers  and  for  secondary  oil  recovery  sites.   Thus,
estuarine/marine aquatic  invertebrates may be  at risk from effluents at high
exposure (once in 10 years, average) for industrial cooling tower and oil recovery
sites.
                             16

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                           Endangered Species

                    The LOG for aquatic endangered species is 1/20 the LC50. The endangered
              species  LOCs  are  3.7  ppm for freshwater fish,  0.415 ppm  for freshwater
              invertebrate, 6 ppm for estuarine fish, and 0.008 ppm for estuarine/marine aquatic
              invertebrates.  Typical exposure case EECs do not exceed LOCs for any of the use
              sites. High exposure case EECs exceed the endangered freshwater fish LOG for
              certain industrial cooling towers,  evaporative condensers,  and sugar mills but do
              not exceed the estuarine fish LOG for any uses. High exposure case EECs exceed
              the endangered aquatic invertebrate LOG (freshwater and estuarine) for all uses
              listed. Assessment for pulp/paper mills was not conducted.

                    DCDIC is  expected to  be discharged at a number  of  different sites.
              Endangered species may be exposed to effluents at these sites.   Based on the above
              discussions,  effluents  containing DCDIC should not be discharged into  aquatic
              habitats where endangered species are known to live.
IV.    RISK MANAGEMENT AND REREGISTRATION DECISION

       A.     Determination of Eligibility

              Section 4(g)(2)(A) of FIFRA calls for the Agency to determine, after submission
       of relevant data concerning an active ingredient, whether products containing the active
       ingredients are eligible  for reregistration.  The Agency has previously identified and
       required the submission of the generic (i.e. active ingredient specific) data required to
       support reregistration of products containing DCDIC active ingredient. The Agency has
       completed its review of these generic data, and has determined that the data are sufficient
       to support reregistration of all products containing DCDIC. Appendix B identifies  the
       generic data  requirements that the Agency reviewed as part of its determination of
       reregistration eligibility of DCDIC and lists the submitted studies that the Agency found
       acceptable.

              The data identified in Appendix B were sufficient to allow the Agency to assess  the
       registered uses of DCDIC and to determine that DCDIC can be used without resulting in
       unreasonable adverse effects  to humans and the environment as discussed below in  the
       Regulatory Position.  The Agency therefore finds that all products  containing DCDIC as
       the  active  ingredient are eligible for reregistration.   The reregistration of particular
       products is addressed in Section V of this document.

              The Agency made its reregistration eligibility determination based upon the target
       data base  required for reregistration,  the  current guidelines for  conducting acceptable
       studies to generate such data, and the data identified in Appendix B.  Although the Agency
       has  found that all uses of DCDIC are eligible  for reregistration, it should be understood


                                           17

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that the Agency may take appropriate regulatory action, and/or require the submission of
additional  data  to  support the registration of products  containing DCDIC  if  new
information comes to the Agency's attention or if the data requirements  for registration
(or the guidelines for generating such data) change.
       1.      Eligibility Decision

       Based on the review of the generic data for the active ingredient DCDIC,  the
Agency has sufficient information on the potential health and environmental effects from
the uses of this pesticide. The Agency has determined that DCDIC products, labeled and
used as specified in this Reregistration Eligibility Decision, will not pose unreasonable
risks to humans or the environment.  Therefore,  the  Agency concludes that products
containing DCDIC for all uses are eligible for reregistration.
       2.      Eligible and Ineligible Uses

       The Agency has determined that all uses of DCDIC are eligible for reregistration.

B.     Regulatory Position

       The following is a summary of the regulatory positions and rationales for DCDIC.
Where labeling revisions are imposed, specific language is set forth in Section V of this
document.

       1.      Tolerance Reassessment

       Food Additive Tolerances for sugar beet and sugar cane mills have been set by
FDA under 21 CFR 173.320.  The Agency defers to FDA regarding dietary exposure to
these uses.

       In addition, food additive tolerances have been established for DCDIC for  food
contact with food  grade paper, paperboard,  (21 CFR 176.300)  and adhesives (21 CFR
175.105).  These uses are no longer active and are not supported for reregistration.


       2.      Effluent Discharge/Aquatic Risk Rationale

       The Agency has determined that discharge to surface waters of effluent containing
DCDIC may result from its use as a pesticide.  Its use as a pesticide and its potential
release to the environment subjects it to the requirements of both  FIFRA and the NPDES
program which is administered by the Agency's Office of Water (OW) with the states.
                                    18

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       By their nature, industrial biocides are often toxic to aquatic organisms. This is
evident from the ecotoxicology data presented in the Science Assessment presented above.
The effect to the environment of discharges containing biocides depends heavily upon the
volume, concentration, and other constituents of a particular discharge,  as well as such
features as the size, nature, and flow rate of waters receiving the discharge.  The Tier Ic
EECs modelling of DCDIC indicated that under typical exposure conditions for uses other
than pulp and paper mills this  biocide did not meet or exceed the Agency's LOCs for
aquatic  organisms.  However, LOCs were exceeded for aquatic invertebrates under the
high exposure scenario.

       FIFRA permits EPA to require the generation of data on the effects of biocides and
to set general limits and conditions of use of a biocide through statements on its  labeling.
However, these mechanisms do not readily provide for adaptation to varied and  changing
local conditions.  Consequently, generalized regulation of a pesticide under FIFRA could
inadequately restrict pesticide use under some local conditions. The NPDES process is
designed to take local  conditions into account through the issuance of  permits for the
discharge of pollutants to bodies of water. However, historically, specific information
about the toxicological and environmental  properties of biocides in effluent streams was
not always  readily available or considered in writing permits.

       EPA's Office of  Pesticide Programs  (OPP)  and OW intend to cooperate in the
oversight of biocide uses to better employ the advantages offered by each program while
avoiding unnecessary  overlap  in regulation.  Under FIFRA,  OPP will  require  the
generation  and submission to the Agency of information that will be used  by OPP to
identify extraordinary hazards that could affect national registration of biocide products
use.   Current  information and  that  gathered  in the  future will be  shared with the OW
where it can be made available to NPDES permit writers  in addressing local aquatic
effects of biocide use.  In  addition, OW will alert OPP to any additional information that
becomes available concerning unanticipated aquatic  effects of the use of this biocide for
OPP's use in  national registration decisions for these products.  This approach should
provide  sufficient environmental safeguards while avoiding redundant effort since it allows
OPP to control the general approval  of the  biocide as required by FIFRA, but includes a
mechanism for recognizing and  dealing with potential local unacceptable effects through
the NPDES program. Improved limitations on use under  FIFRA and  more  accurate
NPDES permitting decisions and accompanying permit limits for industrial biocides may
be developed in the future as the information gathering and exchange program between
the Offices progresses.

       The Agency believes that the above process, coupled with the Agency's finding that
the majority of uses of DCDIC do not raise extraordinary concerns about adverse effects
from  its potential  discharge  to surface   waters,  adequately  addresses the  test  for
reregistration of a pesticide under FIFRA  — "when used in accordance with widespread
and commonly recognized practice it will not generally cause unreasonable adverse effects
on the environment."  Therefore, despite some concerns about potential effects to aquatic
                                     19

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organisms exposed to the effluent resulting from its use, the Agency has concluded that
unreasonable adverse effects from the uses of DCDIC involving discharge to water are
generally  unlikely  under the  condition  that  an  effluent discharge  label statement
(recognizing that any such discharge is subject to the NPDES process) is required for all
products which have a potential for discharge to surface waters.
       3.      Endangered Species Statement

       The Agency has concerns about the exposure of threatened and endangered species
to DCDIC as discussed above in the science assessment chapter.

       Currently, the Agency in conjunction with the U.S. Fish and Wildlife Service and
other federal  and state agencies  is developing a program ("The Endangered Species
Protection Program") to identify all pesticides whose use may cause adverse impacts on
endangered  and threatened species  and to  implement mitigation measures  that  will
eliminate the adverse impacts.  The program would require use modifications or a generic
product label statement, requiring users to consult county-specific  bulletins.   These
bulletins would provide information about specific use restrictions to protect endangered
and threatened species in the county.  Consultations with the Fish and Wildlife Service will
be necessary to assess risks to newly listed species or from proposed new uses.

       4.      Labeling Rationale

       The Agency is imposing protective clothing  and equipment for workers involved
in the application of DCDIC products. Because (1) DCDIC is an eye and skin irritant and
(2)  a developmental toxicity concern exists, label restrictions for the use of appropriate
personal protective equipment (PPE) are prudent to reduce the potential exposure from
open pouring of formulated end-use products.  These PPEs include protective eyewear,
chemical-resistant gloves, footwear, socks, long-sleeved shirt, and long pants.

       In  addition,  because of concern regarding  mixer/loader inhalation exposure to
DCDIC and potential DCDIC degradates, a respirator with either an organic-vapor-
removing  cartridge  with a prefilter approved  for pesticides (MSHA/NIOSH approval
number prefix TC-23C) or a canister approved for pesticides (MSHA/NIOSH approval
number TC-14G) is required during open pouring.

       In order to remain in compliance with FIFRA, it is the Agency's position that the
labeling of  all registered pesticide products containing DCDIC must comply with the
Agency's  pesticide labeling requirements currently in  place as well  as those required
through this document.   The Agency has determined that the current end-use label
precautions and those required through this document are appropriate and required for
product reregistration.
                                    20

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             Because all uses could result in discharged effluents which contain residues of
       DCDIC and these effluents are covered under NPDES permits, it is the Agency's position
       that label precautions must continue to include the NPDES permit required directive.
V.     ACTIONS REQUIRED BY REGISTRANTS

       This section specifies the data requirements and responses necessary for the reregistration
of both manufacturing-use and end-use products.
       A.    Manufacturing-Use Products

             1.     Additional Generic Data Requirements

             The   generic   data  base   supporting   the  reregistration   of   disodium
       cyanodithioimidocarbonate for the above eligible uses has been reviewed and determined
       to be substantially complete.  There is a concern for genetic risk based on the positive
       Chromosome Damage in vitro Study.  As confirmatory testing, a mammalian cell in
       culture forward gene mutation assay is required to maintain the continued registration of
       DCDIC.  Results of the study will be evaluated to determined whether there is a potential
       heritable risk and if additional testing is appropriate.

             Additionally, because of the concerns regarding potential post-application exposure
       to  HCN  and CN ,  the Agency requires the registrant to provide quantification of
       hydrocyanic acid (hydrogen cyanide or HCN), cyanide (CN), thiocyanate (SCN), and all
       other groups with the potential to form CN", at the range of pHs for which the DCDIC
       compounds are used, as confirmatory data.

             A revised Confidential Statement of Formula and revised labeling are required as
       confirmatory data.

             2.     Labeling Requirements for Manufacturing-Use Products

                    Effluent Discharge Labeling Statements

             All manufacturing-use or end-use products that may be contained in an effluent
       discharged to the waters of the United States or municipal sewer systems must bear the
       following revised effluent discharge labeling statement:

             "Do not discharge effluent containing this product into lakes, streams,
             ponds, estuaries, oceans or other waters  unless in accordance with the
             requirements of a  National  Pollutant  Discharge Elimination  System
             (NPDES) permit and the permitting authority has been notified in writing


                                          21

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       prior  to  discharge.   Do  not  discharge  effluent  containing this
       product to sewer systems without previously notifying the local
       sewage treatment plant authority. For guidance contact your State
       Water Board or Regional Office of the EPA."

       All affected  products  distributed or  sold by  registrants  and  distributors
(supplemental registrants) must bear the above labeling by October 1, 1995.  All products
distributed or sold by  persons  other than registrants or  supplemental registrants after
October 1, 1997 must bear the  correct labeling.  Refer to PR Notice 93-10 or 40 CFR
152.46(a)(l) for additional information.

B.     End-Use Products

       1.      Additional Product-Specific Data Requirements

       Based on the reviews of the generic data for the  active ingredient DCDIC, the
products containing DCDIC with uses for the control of algae and bacteria in commercial
and industrial water systems are eligible for reregistration. Section 4(g)(2)B) of FIFRA
calls for the Agency to obtain any needed product-specific data regarding the pesticide
after a determination of eligibility has been made.  The product specific data requirements
are listed in Appendix G, the Product Specific Data  Call-In Notice.

       Registrants must review previous data submissions to ensure that they meet current
EPA acceptance criteria (Appendix F; Attachment E) and if not, commit to conduct new
studies.  If a registrant believes that  previously submitted  data meet  current testing
standards,  then study MRID numbers should be cited according to the instructions in the
Requirement Status and Registrants Response Form  provided for each product.

       2.      Labeling Requirements for End-Use Products

       The labels and labeling of all products must comply with EPA's current regulations
and requirements as specified in 40  CFR  §156.10. Please follow the instructions in the
Pesticide Reregistration Handbook with respect to labels and labeling.

              Effluent Discharge Labeling Statements

       Refer to subsection A. above for labeling requirements for effluent discharge.

              Personal Protective Equipment

       "For open pouring of this product workers must wear eyewear, chemical-
       resistant  gloves, footwear, socks,  long-sleeved shirt, long pants and a
       respirator with either an organic-vapor-removing cartridge with a prefilter
       approved for pesticides (MSHA/NIOSH approval number prefix TC-23C)


                                    22

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       or a canister approved for  pesticides  (MSHA/NIOSH  approval
       number prefix TC-14G)."
C.     Existing Stocks

       Registrants may generally distribute and sell products bearing old labels/labeling
for 26 months from the date of the issuance of this RED.  Persons other than the registrant
may generally distribute or sell such products for 50 months from the date of the  issuance
of this RED.   However,  existing  stocks time frames will be established case-by-case,
depending on the number of products involved, the number of label changes, and other
factors. Refer  to  "Existing Stocks  of  Pesticide  Products;  State of Policy;"  Federal
Register, Volume 56, No. 123, June 26, 1991.

       The  Agency has determined that registrants may distribute and sell  DCDIC
products bearing old labels/labeling for 26 months from the date of issuance of this RED.
Persons other than the registrant may distribute or sell such products for  50 months from
the date of the issuance of this RED.  Registrants and persons other than registrants remain
obligated  to meet  pre-existing Agency imposed label  changes and  existing  stocks
requirements applicable to products they sell or distribute.
                                    23

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24

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VI.  APPENDICES
       25

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26

-------
APPENDIX A. Table of Use Patterns Subject to Reregistration
                           27

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28

-------
APPENDIX A - Case 3065, [Disodium Cyanodithioimidocarbonate] Chemical 063301 [Disodium Cyanodithioimidocarbonate]
Application Application Application Surface
Type Timing Equipment Type
USES ELIGIBLE FOR REREGISTRAT
Form
ION
Minimum
Application
Rate
(ppm a.i.)

Maximum
Application
Rate
(ppm a.i.)

Max. *
Apps.

Max. *
Apps. @
Max. Rate

Min. Interval
Between Apps.
@ Max. Rate
(Days)

Restricted
Entry
Interval

Geographic
Limitations
Allowed

Disallowed

Use Pattern Limitations

FOOD/FEED USES
Site: Food Processing Water Systems Use Group: INDOOR FOOD
water treatment, continuous feed (initial), measuring
container, NA
water treatment, continuous feed (initial), metering pump,
NA
water treatment, continuous feed (initial), NOL, NA
SC/L
SC/L
SC/L
3 W
3 W
3 W
3 W
3 W
13 W
NS
NS
NS
NS
NS
NS
NS
NS
NS
NS
NS
NS
NA
NA
NA
NA
NA
NA
NS
NS
Do not discharge effluent containing this pesticide into sewage
systems without notifying the sewage plant authority. Do not
discharge effluent containing this product into lakes, streams,
ponds, estuaries, oceans, or public water (NPDES license
restriction)
NON-FOOD/NON-FEED USES
Site: Air Washer Water Systems Use Group: AQUATIC NON-FOOD INDUSTRIAL
water treatment, intermittent (slug) (initial) , NOL, NA
water treatment, intermittent (slug) (subsequent), NOL, NA
SC/L
SC/L
2 W
1 W
4 W
4W
NS
NS
NS
NS
NS
1
NS
NS
NA
NA
NA
NA
Preclean claim; NPDES license restriction
Preclean claim; NPDES license restriction
Site: Commercial/Industrial Water Cooling Systems Use Group: AQUATIC NON-FOOD INDUSTRIAL
water recirculating system treatment, intermittent (slug)
(initial) , measuring container, NA
water recirculating system treatment, intermittent (slug)
(subsequent) , measuring container, NA
water recirculating system treatment, intermittent (slug)
(initial), metering pump, NA
water recirculating system treatment, intermittent (slug)
(subsequent) , metering pump , N A
water recirculating system treatment, intermittent (slug)
(initial), NOL, NA
SC/L
SC/L
SC/L
SC/L
SC/L
2V
IV
2V
IV
IV
3V
3V
3V
3V
5V
NS
NS
NS
NS
NS
NS
NS
NS
NS
NS
NS
1
NS
1
1
NS
NS
NS
NS
NS
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
Preclean claim
Preclean claim
Preclean claim
Preclean claim
Preclean claim; NPDES license restriction; Do not
discharge effluent containing this pesticide into
sewage systems without notifying the sewage plant
authority; Do not discharge effluent containing this
product into lakes, streams, ponds, estuaries,
oceans, or public water (NPDES license restriction)
29

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APPENDIX A - Case 3065, [Disodium Cyanodithioimidocarbonate] Chemical 063301 [Disodium Cyanodithioimidocarbonate]
Application Application Application Surface
Type Timing Equipment Type
USES ELIGIBLE FOR REREGISTRAT
Form
ION
Minimum
Application
Rate
(ppm a.i.)

Maximum
Application
Rate
(ppm a.i.)

Max. *
Apps.

Max. *
Apps. @
Max. Rate

Min. Interval
Between Apps.
@ Max. Rate
(Days)

Restricted
Entry
Interval

Geographic
Limitations
Allowed

Disallowed

Use Pattern Limitations

Site: Commercial/Industrial Water Cooling Systems Use Group: AQUATIC NON-FOOD INDUSTRIAL (Continued from previous page)
water recirculating system treatment, intermittent (slug)
(subsequent), NOL, NA
water treatment, intermittent (slug) (initial) , NOL, NA
water treatment, intermittent (slug) (subsequent), NOL, NA
SC/L
SC/L
SC/L
< IV
2V
IV
5V
4V
4V
NS
NS
NS
NS
NS
NS
1
7
NS
1
NS
NS
NS
NA
NA
NA
NA
NA
NA
Preclean claim; NPDES license restriction; Do not
discharge effluent containing this pesticide into
sewage systems without notifying the sewage plant
authority; Do not discharge effluent containing this
product into lakes, streams, ponds, estuaries,
oceans, or public water (NPDES license restriction)
Preclean claim; Do not discharge effluent
containing this product into lakes, streams, ponds,
estuaries, oceans, or public water (NPDES license
restriction)
Preclean claim; Do not discharge effluent
containing this product into lakes, streams, ponds,
estuaries, oceans, or public water (NPDES license
restriction)
Site: Evaporative Condenser Water Systems Use Group: AQUATIC NON-FOOD INDUSTRIAL
water treatment, intermittent (slug) (initial) , NOL, NA
water treatment, intermittent (slug) (subsequent), NOL, NA
SC/L
SC/L
2 V
1 V
4 V
4 V
NS
NS
NS
NS
1
1
7
NS
NS
NA
NA
NA
NA
Preclean claim; Do not discharge effluent
containing this pesticide into sewage systems
without notifying the sewage plant authority; Do
not discharge effluent containing this product into
lakes, streams, ponds, estuaries, oceans, or public
water (NPDES license restriction)
Preclean claim; Do not discharge effluent
containing this pesticide into sewage systems
without notifying the sewage plant authority; Do
not discharge effluent containing this product into
lakes, streams, ponds, estuaries, oceans, or public
water (NPDES license restriction)
Site: Heat Exchanger Water Systems Use Group: AQUATIC NON-FOOD INDUSTRIAL
water treatment, intermittent (slug) (initial) , measuring
container, NA
water treatment, intermittent (slug) (subsequent), measuring
container, NA
SC/L
SC/L
2V
IV
3V
3V
NS
NS
NS
NS
NS
1
NS
NS
NA
NA
NA
NA
Preclean claim
Preclean claim
Site: Heat Exchanger Water Systems Use Group: AQUATIC NON-FOOD INDUSTRIAL (Continued from previous paee)
30

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APPENDIX A - Case 3065, [Disodium Cyanodithioimidocarbonate] Chemical 063301 [Disodium Cyanodithioimidocarbonate]
Application Application Application Surface
Type Timing Equipment Type
USES ELIGIBLE FOR REREGISTRAT
water treatment, intermittent (slug) (initial), metering pump ,
NA
water treatment, intermittent (slug) (subsequent), metering
pump, NA
Form
ION
SC/L
SC/L
Minimum
Application
Rate
(ppm a.i.)

2 V
1 V
Maximum
Application
Rate
(ppm a.i.)

3V
3V
Max. *
Apps.

NS
NS
Max. *
Apps. @
Max. Rate

NS
NS
Min. Interval
Between Apps.
@ Max. Rate
(Days)

NS
1
Restricted
Entry
Interval

NS
NS
Geographic
Limitations
Allowed

NA
NA
Disallowed

NA
NA
Use Pattern Limitations

Preclean claim
Preclean claim
Site: Pulp/Paper Mill Water Systems Use Group: AQUATIC NON-FOOD INDUSTRIAL
water treatment, NOL, drip-feed device, NA
water treatment, NOL, measuring container, NA
water treatment, NOL, metering pump, NA
SC/L
SC/L
SC/L
NC
NC
NC
NC
NC
NC
NS
NS
NS
NS
NS
NS
NS
NS
NS
NS
NS
NS
NA
NA
NA
NA
NA
NA
NS
NS
NS
Site: Secondary Oil Recovery Injection Water Use Group: AQUATIC NON-FOOD INDUSTRIAL
water treatment, continuous feed (initial), measuring
container, NA
water treatment, continuous feed (initial), metering pump,
NA
SC/L
SC/L
IV
IV
2V
2V
NS
NS
NS
NS
NS
NS
NS
NS
NA
NA
NA
NA
NS
NS
Abbreviations used
Header:
Form:
Rate:
In general:
ppm a.i.  = parts per million of active ingredient;  Max. # Apps. =  maximum number of applications
Max. # Apps.  @ Max. Rate = maximum number of applications at maximum rate
Min. Interval Between Apps. @ Max. Rate (Days) =  minimum interval between applications at maximum rate (in days)

SC/L = Soluble Concentrate/Liquid
W =  calculated by weight;  V = calculated by volume; NC = not calculated;  < 1 = less than one
NOL = not specified on the label;  NA = not applicable;  NS  = not specified
                                                                                                        31

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32

-------
APPENDIX B. Table of the Generic Data Requirements and Studies Used to Make the Reregistration Decision
                                                           33

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34

-------
                               GUIDE TO APPENDIX B
Appendix B contains listings of data requirements which support the reregistration for active
ingredients within the case Disodium Cyanodithioimidocarbonate covered by this
Reregistration Eligibility Decision Document. It contains generic data requirements that apply
to Disodium Cyanodithioimidocarbonate in all products, including data requirements for which
a "typical formulation"  is the test substance.

       The data table is organized in the following format:

       1.  Data Requirement (Column 1). The data requirements are listed in the order in
which they appear in 40 CFR Part 158. the reference numbers accompanying each test refer
to the test protocols set in the Pesticide Assessment Guidelines, which are available from the
National Technical Information Service, 5285 Port Royal Road, Springfield, VA 22161 (703)
487-4650.

       2.  Use Pattern  (Column 2).  This column indicates the use patterns for which the data
requirements apply.  The following letter designations are used for the given use patterns:

                           A      Terrestrial food
                           B      Terrestrial feed
                           C      Terrestrial non-food
                           D      Aquatic food
                           E      Aquatic non-food outdoor
                           F      Aquatic non-food industrial
                           G      Aquatic non-food residential
                           H      Greenhouse food
                           I       Greenhouse non-food
                           J       Forestry
                           K      Residential
                           L      Indoor food
                           M     Indoor non-food
                           N      Indoor medical
                           0      Indoor residential

       3.  Bibliographic citation (Column 3).  If the Agency has acceptable data in its files,
this column lists the identifying number of each study.  This normally is the Master Record
Identification (MRID) number, but may be a "GS" number if no MRID number has been
assigned.  Refer to the  Bibliography appendix for a complete citation of the study.
                                          35

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36

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                    APPENDIX B

Data Supporting Guideline Requirements for the Reregistration of Disodium
                  Cyanodithioimidocarbonate
REQUIREMENT
USE PATTERN
CITATION(S)
PRODUCT CHEMISTRY
61-1
61-2A
61-2B
62-1
62-2
62-3
63-2
63-3
63-4
63-5
63-6
63-7
63-8
63-9
63-10
63-11
63-12
63-13
Chemical Identity
Start. Mat. & Mnfg. Process
Formation of Impurities
Preliminary Analysis
Certification of limits
Analytical Method
Color
Physical State
Odor
Melting Point
Boiling Point
Density
Solubility
Vapor Pressure
Dissociation Constant
Octanol/water Partition Coefficient
PH
Stability
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
N/A
ALL
ALL
ALL
ALL
N/A
N/A
ALL
ALL
41683601
41683601, 42632501
41683601, 42632501
41683602
41683602
41683602
41683603
41683603
41683603

41683603
41683603
42951601
42951601


41683603
42951601
                            37

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  Data Supporting Guideline Requirements for the Reregistration of Disodium
                        Cyanodithioimidocarbonate
REQUIREMENT
63-14
63-15
63-16
63-17
63-18
63-19
63-20
Oxidizing and Reducing Acting
Flammability
Explodability
Storage stability
Viscosity
Miscibility
Corrosion characteristics
USE PATTERN
N/A
N/A
N/A
ALL
ALL
N/A
ALL
CITATION(S)



42771701
41683603

42771701
ECOLOGICAL EFFECTS
71-1A
71-2A
71-2B
72-1A
72-1C
72-2A
72-3A
72-3B
72-3C
122-1A
Acute Avian Oral - Quail/Duck
Avian Dietary - Quail
Avian Dietary - Duck
Fish Toxicity Bluegill
Fish Toxicity Rainbow Trout
Invertebrate Toxicity
Estuarine/Marine Toxicity - Fish
Estuarine/Marine Toxicity -
Mollusk
Estuarine/Marine Toxicity -
Shrimp
Seed Germination/Seedling
F
F
F
F
F
F
F
F
F

25563
42981301
40643201
41913001
41870601
41897001
43151503
43151502
43151501
WAIVED
Emergence
                                    38

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            Data Supporting Guideline Requirements for the Reregistration of Disodium
           	Cyanodithioimidocarbonate	
REQUIREMENT
USE PATTERN
CITATION(S)
122-IB     Vegetative Vigor
122-2      Aquatic Plant Growth
TOXICOLOGY
81-1
81-2
81-3
81-4
81-5
81-6
82-3
83-3A
83-3B
84-2A
84-2B
84-4
Acute Oral Toxicity - Rat
Acute Dermal Toxicity -
Rabbit/Rat
Acute Inhalation Toxicity - Rat
Primary Eye Irritation - Rabbit
Primary Dermal Irritation - Rabbit
Dermal Sensitization - Guinea Pig
90-Day Dermal - Rodent
Developmental Toxicity - Rat
Developmental Toxicity - Rabbit
Gene Mutation (Ames Test)
Structural Chromosomal
Aberration
Other Genotoxic Effects
ALL
ALL
ALL

ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
OCCUPATIONAL/RESIDENTIAL EXPOSURE
133-3
233
Dermal Passive Dosimetry
Estimation of Dermal Exposure at

ALL
                                            WAIVED
                                            WAIVED

                                            41592601
                                            41592602

                                            42952501
                                            WAIVED
                                            41592603
                                            41592604
                                            40974801
                                            41009301
                                            41009401
                                            40425101
                                     41177901,40425102

                                            40425103

                                          RESERVED
                                            41412201
          Indoor Sites
                                               39

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            Data Supporting Guideline Requirements for the Reregistration of Disodium
	Cyanodithioimidocarbonate	
 REQUIREMENT                            USE PATTERN                            CITATION(S)
 ENVIRONMENTAL FATE
 160-5     Chemical Identity                      ALL                                   41683601
 161-1     Hydrolysis                           ALL                          42968001, 42595601*
* PARTIALLY SATISFIED, MORE DATA REQUIRED
                                             40

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APPENDIX C.  Citations Considered to be Part of the Data
     Base Supporting the Reregistration of Disodium
              Cyanodithioimidocarbonate
                          41

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42

-------
                               GUIDE TO APPENDIX C

1.      CONTENTS OF BIBLIOGRAPHY.  This bibliography contains citations of all studies
       considered relevant by EPA in arriving at the positions and conclusions stated
       elsewhere in the Reregistration Eligibility Document. Primary sources for studies in
       this bibliography have been the body of data submitted to EPA and its predecessor
       agencies in support of past regulatory decisions. Selections from other sources
       including the published literature, in those instances where they have been considered,
       are included.

2.      UNITS OF ENTRY. The unit of entry in this bibliography is called a "study". In the
       case of published materials, this corresponds closely to an article. In the case of
       unpublished materials submitted to the Agency, the Agency has sought to identify
       documents at a level parallel to the published article from within the  typically larger
       volumes in which they were submitted. The resulting "studies" generally have a
       distinct title (or at least a single subject), can stand alone for purposes of review and
       can be described with a conventional bibliographic citation.  The Agency has also
       attempted to  unite basic documents and commentaries upon them, treating them as a
       single study.

3.      IDENTIFICATION OF ENTRIES.  The entries in this bibliography are sorted
       numerically by Master Record Identifier, or "MRID number".  This  number is unique
       to the citation, and should be used whenever a specific reference is required.  It is not
       related  to the six-digit "Accession Number" which has been used to identify volumes of
       submitted studies (see paragraph 4 (d) (4) below for further explanation).   In a few
       cases, entries added to the bibliography late in the review may be preceded by  a nine
       character temporary identifier. These entries are listed after all MRID entries.  This
       temporary identifying number is also to be used whenever specific reference is needed.

4.      FORM OF ENTRY. In addition to the Master Record Identifier (MRID), each entry
       consists of a citation containing standard elements followed,  in the case of material
       submitted to  EPA, by a description of the earliest known submission. Bibliographic
       conventions used reflect the standard of the American National Standards Institute
       (ANSI), expanded to provide for certain special needs.

       a     Author.  Whenever the author could confidently be identified, the Agency has
             chosen to show a personal author.  When no individual was identified, the
             Agency has shown an identifiable laboratory or testing facility as the  author.
             When no author or laboratory could be identified, the Agency has shown the
             first submitter as the author.

       b.     Document date.  The date of the study is taken directly from the document.
             When the date is followed by a question mark, the bibliographer has deduced
             the date from the evidence contained in the document.  When the date appears


                                           43

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       as (19??), the Agency was unable to determine or estimate the date of the
       document.

c.      Title.  In some cases, it has been necessary for the Agency bibliographers to
       create or enhance a document title.  Any such editorial insertions are contained
       between square brackets.

d.      Trailing parentheses.  For studies submitted to the Agency in the past, the
       trailing parentheses include (in addition to any self-explanatory text) the
       following elements describing the earliest known submission:

       (1)    Submission date.  The date of the earliest known submission appears
             immediately following the word "received."

       (2)    Administrative number.  The next element immediately following the
             word "under" is the registration number, experimental use permit
             number, petition number, or other administrative number associated
             with the earliest known submission.

       (3)    Submitter.  The third  element is the submitter.  When authorship is
             defaulted to the submitter, this element is omitted.

       (4)    Volume Identification (Accession Numbers).  The final element in the
             trailing parentheses identifies the EPA accession number of the volume
             in which the original submission  of the study appears.  The six-digit
             accession number follows the symbol "CDL," which stands for
             "Company Data Library." This accession number is in turn followed by
             an alphabetic suffix which shows the relative position of the study within
             the volume.
                                    44

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                                 BIBLIOGRAPHY
MRID
CITATION
00025563    Najarian, G.; Piccirillo, V.J. (1978) Final Report: Acute Oral LDaeSO- in
             Mallard Ducks: Project No. 197-164.  (Unpublished study received Oct 11,
             1978 under 1448-54; prepared by Hazleton Laboratories America, Inc.,
             submitted by Buckman Laboratories, Inc., Memphis, Tenn.; CDL:241676-B)

40425101    Jagannath, D. (1987) Mutagenicity Test on DCDIC in the Ames
             Salmonella/Microsome Reverse Mutation Assay: HLA Study No. 9971-0-401.
             Unpublished study prepared by Hazleton Laboratories America, Inc. 31 p.

40425102    Muril, H.  (1987) Mutagenicity Test on DCDIC in an in vitro Cytogenic Assay
             Measuring Sister Chromatid Exchange Frequencies in Chinese Hamster Ovary
             (CHO) Cells: HLA Study No. 9971-0-438. Unpublished study prepared by
             Hazleton Laboratories America, Inc.  20 p.

40425103    Cifone, M. (1987) Mutagenicity Test on DCDIC in tbe Rat Primary Hepatocyte
             Unscheduled DNA Synthesis Assay: HLA Study No. 9971-0-447.  Unpublished
             study prepared by Hazleton Laboratories America, Inc.  28 p.

40643201    Carr, S.; Piccirillo, V. (1978) Disodium Cyanodithioimidocarbonate: Subacute
             Dietary LC50 in Mallard Ducks: Project No. 197-165. Unpublished study
             prepared by Hazleton Laboratories. 7  p.

40974801    Siglin, J. (1988) 91-day Dermal Toxicity Study in Rats with DCDIC: Final
             Report: SLS Study No. 3138.21.  Unpublished study prepared by Springborn
             Life Sciences, Inc.  443 p.

41009301    Rodwell, D. (1988) Teratology Study in Rats with DCDIC: Final Rept: SLS
             Study No.  3138.23.  Unpublished study prepared by Springborn Life Sciences,
             Inc.  328 p.

41009401    Rodwell, D. (1988) Teratology Study in Rabbits with  DCDIC:  Final Rept: SLS
             Study No.  3138.25.  Unpublished study prepared by Springborn Life Sciences,
             Inc.  228 p.

41177901    Murli, H.  (1989) Mutagenicity Test on DCDIC in an in vitro cytogenetic Assay
             Measuring Sister Chromatid Exchange Frequencies in Chinese Hamster Ovary
             (CHO) Cells: Final Report: ProjectID: HLA Study No. 10855-0-438; Project
             No. 20990.  Unpublished study prepared by Hazleton  Laboratories America,
             Inc.  20 p.
                                         45

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                                 BIBLIOGRAPHY
MRID
CITATION
41412201     Popendorf, W.; Selim, M.; Kross, B. (1990) Chemical Manufacturers
             Association Antimicrobial Exposure Assessment Study: Lab Project ID: Q626.
             Unpublished  Study prepared by Univ. of Iowa, Institute of Agricultural
             Medicine and Occupational Health. 209 p.

41592601     Naas, D. (1990) Acute Oral Toxicity (LD50) Study in Albino Rats with
             DCDIC: Lab Project Number: WIL-94031. Unpublished study prepared by
             Wil Research Laboratories, Inc. 92 p.

41592602     Naas, D. (1990) Acute Dermal Toxicity (LD50) Study in Albino Rabbits with
             DCDIC: Lab Project Number: WIL-94032. Unpublished study prepared by
             WIL Research Laboratories, Inc. 35 p.

41592603     Naas, D. (1990) Primary Dermal Irritation Study in Rabbits with DCDIC: Lab
             Project Number: WIL-94033.  Unpublished study prepared by WIL Research
             Laboratories, Inc.  21 p.

41592604     Naas, D. (1990) Skin Sensitization Study in Albino Guinea Pigs with DCDIC:
             Lab Project Number: WIL-94034. Unpublished study prepared by WIL
             Research Laboratories, Inc. 47 p.

41683601     McNeel, T. (1990) Product Chemistry for DCDIC: Product Identity,
             Manufacturing Process, Discussion of Impurities.  Unpublished study prepared
             by Buckman  Laboratories International,  Inc. 34 p.

41683602     McNeel, T. (1990) Product Chemistry for DCDIC: Preliminary Analysis,
             Certified Limits and Enforcement Analytical Techniques: Lab Project Number:
             107-01.  Unpublished study prepared by Buckman Laboratories International,
             Inc.  27 p.

41683603     McNeel, T. (1990) Product Chemistry for DCDIC: Physical/Chemical
             Properties. Unpublished study prepared by Buckman Laboratories
             International, Inc.  27 p.

41870601     Machado, M. (1991) (DCDIC) Acute Toxicity to Rainbow Trout
             (Oncorhynchus mykiss) under Flow-Through Conditions: Final Report: Project
             Numbers: 91-3-3712; 995.0390.6126.108.  Unpublished study prepared by
             Springborn Laboratories, Inc.   62 p.
                                         46

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                                 BIBLIOGRAPHY
MRID
CITATION
41897001     Putt, A. (1991) DCDIC-Acute Toxicity to Daphnids (Daphnia magna) Under
             Flow-through Conditions: Final Report: Lab Project Number: 91-4-3739:
             995.0390.6127.115.  Unpublished study prepared by Springborn Laboratories,
             Inc.  64 p.

41913001     Machado, M. (1991) (DCDIC)-Acute Toxicity to Bluegill Sunfish (Lepomis
             macrochirus) Under Flow-Through Conditions: Lab Project Number:
             91-5-3752: 995. 0390. 6125. 105. Unpublished study prepared by Springborn
             Laboratories, Inc.  64 p.

42632501     McNeel, T.; Conaway, L.; Barbee, D. (1990) Product Chemistry for  DCDIC.
             Unpublished study prepared by Buckman Labs International, Inc.  34 p.

42771701     Whetzel, J.  (1993) Determination of Storage Stability and Corrosion
             Characteristics  of DCDIC: Lab Project Number: 82/91-BUG. 13.  Unpublished
             study prepared  by Twin City Testing Corp.  30 p.

42951601     Siemann, L.  (1993) Product Chemistry for DCDIC: Series 63, Physical and
             Chemical Characteristics: Lab Project Number: 3437-F. Unpublished study
             prepared by Midwest Research Institute. 48 p.

42952501     Rush, R.  (1993) An Acute Whole-Body Inhalation Toxicity Study in Rats with
             DCDIC: Lab Project Number: 3138.98. Unpublished study prepared  by
             Springborn Laboratories, Inc. (SLS).  124 p.

42968001     Gohdes, M. (1993) Hydrolysis of (carbon 14)-DCDIC in Aqueous Solutions
             Buffered at pH  5, 7 and 9: Supplement to the Final Report: Lab Project
             Number: WHI  6176-171. Unpublished study prepared by Hazleton Wisconsin,
             Inc.  53 p.

42981301     Pedersen, C.; Solatycki, A. (1993) Disodium Cyanodithioimidocarbonate
             (DCDIC); 8-Day Acute Dietary LD50 in Bobwhite Quail: Lab Project Number:
             127-003-01R; 127-003-01. Unpublished study prepared by Bio-Life Associates,
             Ltd.  76 p.

43151501     Bettencourt, M. (1994) DCDIC-Acute Toxicity to Mysid Shrimp (Mysidopsis
             bahia) Under Flow-Through Conditions: Final Report:  Lab Project Number:
             94-1-5143: 995.0593.6168.515. Unpublished study prepared by Springborn
             Labs, Inc. 67 p.
                                        47

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                                 BIBLIOGRAPHY

MRID                          CITATION
43151502     Dionne, E. (1994) DCDIC-Acute Toxicity to Eastern Oyster (Crassostrea
             virginica) Under Flow-Through Conditions: Final Report: Lab Project Number:
             94-1-5146: 995.0593.6170.504. Unpublished study prepared by Springborn
             Labs, Inc. 66 p.

43151503     Bettencourt, M. (1994) DCDIC-Acute Toxicity to Sheepshead   Minnow
             (Cyprinodon variegatus) Under Flow-Through Conditions: Final Report: Lab
             Project Number: 94-2-5158: 995.0593.6169.505.  Unpublished study prepared
             by Springborn Labs, Inc. 68 p.
                                        48

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APPENDIX D.  List of Available Related Documents
                     49

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50

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       The following is a list of available documents related to Disodium
Cyanodithioimidocarbonate.  It's purpose is to provide a path to more detailed information if it
is needed. These accompanying documents are part of the Administrative Record for
Disodium Cyanodithioimidocarbonate and are included in the EPA's Office of Pesticide
Programs Public Docket.

       1.     Health and Environmental Effects Science Chapters

       2.     Detailed Label Usage Information System (LUIS) Report

       3.     Disodium Cyanodithioimidocarbonate RED Fact Sheet

       4.     PR Notice 86-5 (included in this appendix)

       5.     PR Notice 91-2 (included in this appendix) pertains to the Label Ingredient
             Statement
                                          51

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52

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APPENDIX E.  PR Notices 86-5 and 91-2
                  53

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54

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PR Notice  86-5
      55

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56

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              UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

   tpno1                        WASHINGTON, D.C. 20460

                                  July 29, 1986

                                                            OFFICE OF
                             PR NOTICE 86-5           PREVENTION, PESTICIDES
                                                     AND TOXIC SUBSTANCES


          NOTICE TO PRODUCERS,  FORMULATORS, DISTRIBUTORS
                         AND REGISTRANTS

Attention:      Pers9ns responsible for Federal  registration  of
                pesticides.

Subject:        Standard format for data submitted under  the
                Federal Insecticide, Fungicide,  and Rodenticide
                Act  (FIFRA)  and certain provisions of the Federal
                Food, Drug,  and Cosmetic Act  (FFDCA).

I.    Purpose

     To require data to be  submitted to the  Environmental
Protection Agency  (EPA) in  a standard  format. This Notice  also
provides additional guidance about, and illustrations of,  the
required formats.

II.   Applicability

     This PR Notice applies to all data that are submitted to EPA
to satisfy data requirements for granting  or maintaining
pesticide registrations, experimental  use  permits, tolerances,
and related approvals under certain provisions  of FIFRA  and
FFDCA.  These data are defined in FIFRA §10(d)(1).   This Notice
does not apply  to commercial, financial, or production
information, which are, and must continue  to be, submitted
differently under separate  cover.

Ill.  Effective  Date

     This notice is effective on November  1, 1986. Data  formatted
according to this notice may be submitted  prior to the effective
date.  As of the effective  date, submitted data packages that do
not conform to  these requirements may  be returned to the
submitter for necessary revision.

IV.   Background

     On September 26, 1984, EPA published  proposed regulations  in
the Federal Register (49 FR 37956) which include Requirements for
Data Submission (40 CFR §158.32), and  Procedures for Claims  of
Confidentiality of Data (40 CFR §158.33).  These regulations
specify the format for data submitted  to EPA under Section 3 of
FIFRA and Sections 408 and  409 of FFDCA, and procedures  which
must be followed to make and substantiate  claims of  confiden-
tiality.  No entitlements to data confidentiality are changed,
either by the proposed regulation or by this notice.

     OPP is making these requirements  mandatory through  this
Notice to gain  resource-saving benefits from their use before the


                                57

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entire proposed regulation becomes final.  Adequate lead time is
being provided for submitters to comply with the new
requirements.

V.   Relationship of this Notice to Other OPP Policy and Guidance

     While this Notice contains requirements for organizing and
formatting submittals of supporting data,  it does not address the
substance of test reports themselves.  "Data reporting" guidance
is now under development in OPP, and will specify how the study
objectives, protocol, observations, findings, and conclusions are
organized and presented within the study report. The data
reporting guidance will be C9mpatible with submittal format
requirements described in this Notice.

     OPP has also promulgated a policy (PR Notice 86-4 dated
April 15, 1986) that provides for early screening of certain
applications for registration under FIFRA §3.  The objective of
the screen is to avoid the additional C9sts and prolonged delays
associated with handling significantly incomplete application
packages.  As of the effective date of this Notice,  the screen
will include in its criteria for acceptance of applicati9n
packages the data formatting requirements described herein.

     OPP has also established a public docket which imposes
deadlines for inserting int9 the docket documents submitted in
connection with Special Reviews and Registration Standards  (see
40 CFR §154.15 and §155.32).  To meet these deadlines, OPP is
requiring an additional copy of any data submitted to the docket.
Please refer to Page 10 for more information about this
requirement.

     For several years, OPP has required that each application
for registration or other action include a list 9f all applicable
data requirements and an indication of how each is satisfied--the
statement of the method of support f9r the application.
Typically, many requirements are satisfied by reference to data
previously submitted--either by the applicant or by another
party.  That requirement is not altered by this notice, which
applies only to data submitted with an application.

VI.   Format Requirements

     A more detailed discussion of these format requirements
foll9ws the index on the next page, and samples of some of the
requirements are attached.  Except for the language 9f the two
alternative forms of the Statement of Data Confidentiality Claims
(shown in Attachment 3) which cannot be altered, these samples
are illustrative.  As long as the required information is
included and clearly identifiable, the form of the samples may be
altered to reflect the submitter's preference.

                             -  INDEX-
                                                            Text Example
                                                            Page   Page
A.   Organization of the Submittal Package	3      17

B.   Transmittal Document	4      11

C.   Individual Studies 	  4

     C. 1  Special Considerations for Identifying Studies  .  .  5

D.   Organization of each Study Volume	6      17

     D. 1  Study Title Page	7      12


                                   58

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     D. 2  Statement of Data Confidentiality Claims
                   (based on FIFRA §10 (d) (1)1   	8      13
     D. 3  Confidential Attachment	8      15
     D. 4  Supplemental Statement of Data Confidentiality
            Claims  (other than those based on FIFRA §10(d)(1) )  8      14
     D. 5  Good Laboratory Practice Compliance Statement   .  .  9      16

E.   Reference to Previously Submitted Data 	  9

F.   Physical Format Requirements & Number of Copies   ....  9

G.   Special Requirements for Submitting Data to the Docket   10
A.   Organization of Submittal Package

     A "submittal package" consists of all studies submitted at
the same time f9r review in support of a single regulatory
action, along with a transmittal document and other related
administrative material  (e.g. the method of support statement,
EPA Forms 8570-1, 8570-4, 8570-20, etc.) as appropriate.

     Data submitters must organize each submittal package as
described in this Notice.  The transmittal and any other admin-
istrative material must be gr9uped together in the first physical
volume.  Each study included in the submittal package must then
be bound separately.

     Submitters sometimes provide additional materials that are
intended to clarify, emphasize, or otherwise comment to help
Product Managers and reviewers better understand the submittal.

        If such materials relate to one study, they should be
     included as an appendix to that study.

     - If such materials relate to more than one study  (as for
     example a summary of all studies in a discipline) or to the
     submittal in general, they must be included in the submittal
     package as a separate study  (with title page and statement
     of confidentiality claims).

B.   Transmittal Document

     The first item in each submittal package must be a trans-
mittal document.  This document identifies the submitter or all
joint submitters; the regulatory action in support of which the
package is being submitted--!.e., a registration application,
petition, experimental use permit (EUPT, §3 (c) (2) (B) data
call-in,  §6(a)(2) submittal, or a special review; the transmittal
date; and a list of all individual studies included in the
 gackage in the order of their appearance, showing (usually by
 uideline reference number)  the data requirement(s)  addressed by
each one.  The EPA-assigned number for the regulatory action
(e.g. the registration, EUP, or tolerance petition number) should
be included in the transmittal document as well, if it is known
to the submitter.  See Attachment 1 for an example of an
acceptable transmittal document.

     The list of included studies in the transmittal of a data
submittal package supporting a registration application should be
subdivided by discipline, reflecting the order in which data
requirements appear in 40 CFR 158.

     The list of included studies in the transmittal of a data
submittal package supporting a petition for tolerance or an


                                59

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application for an EUP should be subdivided into sections A, B,
C,....  of the petition or application, as defined in 40 CFR 180.7
and 158.125, (petitions)  or Pesticide Assessment Guidelines,
Subdivision I (EUPs)  as appropriate.

     When a submittal package supports a tolerance petiti9n and
an application for a registration or an EUP, list the petition
studies first,  then the balance of the studies.  Within these two
groups of studies follow the instructions above.

C.   Individual Studies

     A study is the report of a single scientific investigation,
including all supporting analyses required for logical complete-
ness.   A study should be identifiable and distinguishable by a
C9nventional bibliographic citation including author, date, and
title.   Studies generally correspond in scope to a single Guide-
line requirement for supporting data, with 39016 exceptions dis-
cussed in section C.I.  Each study included in a submittal
 Eackage must be bound as a separate entity.  (See comments on
 inding studies on page 9.)

     Each study must be consecutively paginated, beginning from
the title page as page 1.  The total number of pages in the com-
plete study must be shown on the study title page.  In addition
(to ensure that inadvertently separated pages can be reassociated
with the proper study during handling or review) use either of
the following:

     - Include the total number of pages in the complete study on
     each page (i.e., 1 of 250, 2 of 250,  ...250 of 250).

     - Include a company name or mark and study number on each
     page of the study, e g ,  Company Name-1986-23.    Never reuse
     a study number for marking the pages of subsequent studies.
     When a single study is extremely long, binding it in mul-
tiple V9lumes is permissible so long as the entire study is pag-
inated in a single series,  and each volume is plainly identified
by the study title and its position in the multi-volume sequence.

C.1  Special Considerations for Identifying Studies

     Some studies raise special problems in study identification,
because they address Guidelines of broader than normal scope or
for other reasons.

     a. Safety Studies.  Several Guidelines require testing for
safety in more than one species. In these cases each species
tested should be reported as a separate study,  and bound
separately.

     Extensive supplemental reports of pathology reviews, feed
analyses, historical C9ntrol data, and the like are often assoc-
iated with safety studies.   Whenever possible these should be
submitted with primary reports of the study, and bound with the
primary study as appendices.  When such supplemental reports are
submitted independently of the primary report,  take care to fully
identify the primary report to which they pertain.

     Batteries of acute toxicity tests, performed on the same end
use product and covered by a single title page, may be bound
together and reported as a single study.

     b. Product Chemistry Studies.   All product chemistry data
within a submittal package submitted in support of an end-use
product produced from registered manufacturing-use products
should be bound as a single study under a single title page.

     Product chemistry data submitted in support of a technical
product, other manufacturing-use product, an experimental use
permit, an import tolerance petition, or an end-use product


                                60

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produced from unregistered source ingredients, should be bound as
a single study for each Guideline series  (61, 62, and 63) for
C9nventional pesticides, or for the equivalent subject range for
biorational pesticides.  The first of the three studies in a
complete product chemistry submittal for a biochemical pesticide
would cover Guidelines 151-10,  151-11,  and 151-12; the second
would cover Guidelines 151-13,  151-15,  and 151-16; the third
would cover Guideline 151-17. The first study for a microbial
pesticide would cover Guidelines 151-20, 151-21,  and 151-22; the
second W9uld cover Guidelines 151-23 and 151-25;  the third would
cover Guideline 151-26.

     Note particularly that product chemistry studies are likely
to contain Confidential Business Information as defined in FIFRA
§10(d)(1)(A), (B) ,  or  (C),  and if so must be handled as described
in section D.3.  of this notice.

     c.   Residue Chemistry Studies.   Guidelines 171-4, 153-3,
and 153-4 are extremely broad in scope; studies addressing
residue chemistry requirements must thus be defined at a level
below that of the Guideline code.  The general principle,
h9wever, of limiting a study to the report of a single inves-
tigation still applies fully.  Data should be treated as a single
study and bound separately for each analytical method, each
report of the nature of the residue in a single crop or animal
species, and for each report of the magnitude of residues
resulting from treatment of a single crop or from processing a
single crop.  When more than one commodity is derived from a
single crop  (such as beet tops and beet roots) residue data on
all such C9mmodities should be reported as a single study.  When
multiple field trials are associated with a single crop, all such
trials should be reported as a single study.

D.    Organization of Each Study Volume

     Each complete study must include all applicable elements in
the list below,  in the order indicated.   (Also see Page 17.)
Several of these elements are further explained in the following
paragraphs.   Entries in the column headed "example" cite the
page number of this notice where the element is illustrated.
Element

Study Title Page

Statement of Data
Confidentiality
Claims

Certification of Good
Laboratory Practice
Flagging statements
Body of Study
Study Appendices

Cover Sheet to Confi-
dential Attachment
When Required                 Example

Always                        Page 12

One of the two alternative    Page 13
forms of this statement
is always required

If study reports Iaborat9ry   Page 16
work subject to GLP require-
ments

For certain t9xicology studies  (When
flagging requirements are finalized.)

Always - with an English language
translation if required.

At submitter's option

If CBI is claimed under FIFRA
§10 (d) (1) (A) ,  (B) ,  or (C)
CBI Attachment
If CBI is claimed under FIFRA
§10 (d) (1) (A) ,   (B) ,  or  (C)     Page 15
Supplemental Statement   Only if confidentiality is    Page 14
of Data Confidentiality  claimed on a basis other than
Claims                   FIFRA §10(d)(1)(A),   (B),  or  (C)
                                61

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D.I. Title Page

     A title page is always required for each submitted study,
published or unpublished.  The title page must always be freely
releasable to requestors; DO NOT INCLUDE CBI ON THE TITLE PAGE.
An example of an acceptable title page is on page 12 of this
notice.  The following information must appear on the title page:

a.   Study title.  The study title should be as descriptive as
possible It must clearly identify the substance(s) tested and
correspond to the name of the data requirement as it appears in
the Guidelines.

b.   Data requirement addressed.  Include on the title page the
Guideline number(s)  of the specific requirement(s) addressed by
the study.

c.   Author(s).  Cite only individuals with primary intellectual
responsibility for the C9ntent 9f the study.  Identify them
plainly as authors,  to distinguish them from the performing
laboratory, study sponsor, or other names that may also appear on
the title page.

d.   Study Date.  The title page must include a single date for
the study.  If parts of the study were performed at different
times, use only the date of the latest element in the study.

e.   Performing Laboratory IdentificatJ9n.  If the study reports
work done by one or more laboratories,Include on the title page
the name and address of the performing laboratory or
laboratories, and the laboratory's internal project number(s) for
the work.  Clearly distinguish the laboratory's project
identifier from any other reference numbers provided by the study
sponsor or submitter.

f.   Supplemental Submissions.  If the study is a commentary on
or supplement to another previously submitted study, or if it
responds to EPA questions raised with respect to an earlier
study, include 9n the title page elements a. through d. for the
previ9usly submitted study, along with the EPA Master Record
Identifier (MRID) or Accession number of the earlier study if you
know these numbers.   (Supplements submitted in the same submittal
package as the primary study should be appended to and bound with
the primary study.  Do not include supplements to more than one
study under a single title page).

g.    Facts of Publication.  If the study is a reprint of a pub-
lished d9cument, identity on the title page all relevant facts of
publication,  such as the J9urnal title, volume, issue, inclusive
page numbers, and publication date.


D.2. Statements of Data Confidentiality Claims Under FIFRA
§10(d) (1) .

     Each submitted study must be accompanied by one of the two
alternative forms of the statement of Data Confidentiality Claims
specified in the proposed regulation in §158.33 (b) and (c)    (See
Attachment 3).   These statements apply only to claims of data
confidentiality based on FIFRA §10(d)(1)(A), (B),  or  (C).   Use
the appropriate alternative form of the statement either to
assert a claim of §10(d)(l) data confidentiality  (§158.33(b)) or
to waive such a claim (§158.33(c)).  In either case, the
statement must be signed and dated, and must include the typed
name and title of the official who signs it.  Do not make CBI
                                62

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claims with respect to analytical methods associated with pet-
itions for tolerances or emergency exemptions  (see NOTE Pg 13).

D.3. Confidential Attachment

     If the claim is made that a study includes confidential
business information as defined by the criteria of FIFRA
§10(D)(1)(A),   (B),  or (C) (as described in D.2. above) all such
information must be excised from the body of the study and
confined to a separate study-specific Confidential Attachment.
Each passage of CBI so isolated must be identified by a reference
number cited within the body of the study at the point from which
the passage was excised  (See Attachment 5).

     The Confidential Attachment to a study must be identified by
a cover sheet fully identifying the parent study, and must be
clearly marked "Confidential Attachment."  An appropriately
annotated photocopy of the parent study title page may be used as
this cover sheet.  Paginate the Confidential Attachment
separately from the body of the study, beginning with page 1 of X
on the title page.   Each passage confined t9 the Confidential
Attachment must be associated with a specific cross reference to
the page(s) in the main body of the study on which it is cited,
and with a reference to the applicable passage(s) of FIFRA
§10(d)(1)  on which the confidentiality claim is based.

D.4. Supplemental Statement of Data Confidentiality Claims (See
     Attachment 4)
     If you wish to make a claim of confidentiality for any
 )ortion of a submitted study other than described by FIFRA £
 [I)(A),  (B),  or  (C),  the following provisions apply:
     - The specific information to which the claim applies must
     be clearly marked in the body of the study as subject to a
     claim of confidentiality.

     - A Supplemental Statement 9f Data Confidentiality Claims
     must be submitted, identifying each passage claimed confi-
     dential and describing in detail the basis for the claim.
     A list of the points to address in such a statement is
     included in Attachment 4 on Pg 14.

     - The Supplemental Statement of Data Confidentiality Claims
     must be signed and dated and must include the typed name and
     title of the official who signed it.

D.5. Good Laboratory Practice Compliance Statement

     This statement is required if the study contains laboratory
work subject to GLP requirements specified in 40 CFR 160.  Sam-
ples of these statements are shown in Attachment 6.

E.    Reference to Previously Submitted Data

     DO NOT RESUBMIT A STUDY THAT HAS PREVIOUSLY BEEN SUBMITTED
FOR ANOTHER PURPOSE unless EPA specifically requests it.   A copy
of the title page plus the MRID number (if known)  is sufficient
to allow us t9 retrieve the study immediately for review.  This
prevents duplicate entries in the Agency files, and saves you
the cost of sending more copies of the study.  References to pre-
viously submitted studies smpuld not be included in the transmit-
tal document, but should be incorporated into the statement of
the method of support for the application.

F.    Physical Format Requirements

     All elements in the data submittal package must be on
uniform 8 1/2 by 11 inch white paper, printed 9n one side only in
black ink, with high contrast and good res9lution.  Bindings for
individual studies must be secure, but easily removable to permit


                                63

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disassembly for microfilming.  Check with EPA for special
instructions bef9re submitting data in any medium other than
paper, such as film or magnetic media.

Please be particularly attentive to the following points:

     •    Do not include frayed or torn pages.

     •    Do not include carbon copies, or copies in other than
          black ink.

     •    Make sure that photocopies are clear,  complete, and
          fully readable.

     •    Do not include oversize computer printouts or fold-out
          pages.

     •    Do not bind any documents with glue or binding tapes.

     •    Make sure that all pages of each study, including any
          attachments or appendices, are present and in correct
          sequence.

     Number of Copies Required - All submittal packages except
those associated with a Registration Standard or Special Review
(See Part G below)  must be provided In three complete,  identical
copies.  (The prop9sed regulati9ns specified two copies; three
are now being required to expedite and reduce the cost of
processing data into the OPP Pesticide Document Management System
and getting it into review.)

G.   Special Requirements for Submitting Data to the Docket

     Data submittal packages associated with a Registration Stan-
dard 9r Special Review must be provided in four C9pies, fr9m one
of which all material claimed as CBI has been excised.   This
fourth copy will become part of the public docket for the RS or
SR case.  If no claims of confidentiality are made for the study,
the fourth copy should be identical to the other three.  When
portions of a study submitted in support of an RS or SR are
claimed as CBI, the first three copies will include the CBI
material as provided in section D of this notice.  The following
special preparation is required for the fourth copy.

     •    Remove the "Supplemental Statement of Data
          Confidentiality Claims".

     •    Remove the "Confidential Attachment".

     •    Excise from the body of the study any information you
          claim as confidential, even if it does not fall within
          the scope of FIFRA §10(d)(1)(A),  (B),  or  (C).  Do not
          close up or paraphrase text remaining after this
          excision.

     •    Mark the fourth copy plainly on both its cover and its
          title page with the phrase "Public Docket Material -
          contains no information claimed as confidential".
                                64

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V.    For Further Information

     For further information contact John Carley, Chief,
Information Services Branch, Program Management and Support
Division, (703) 305-5240.
                              /S/

                         James W. Akerman
                         Acting Director,
                         Registration Division
Attachment 1.   Sample Transmittal Document
Attachment 2.   Sample Title Page for a Newly Submitted Study
Attachment 3.   Statements of Data Confidentiality Claims
Attachment 4.   Supplemental Statement of Data Confidentiality
               Claims
Attachment 5.   Samples of Confidential Attachments
Attachment 6.   Sample G9od Laboratory Practice Statements
Attachment 7.   Format Diagrams for Submittal Packages and Studies
                                65

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                          ATTACHMENT 1

       ELEMENTS  TO  BE  INCLUDED  IN THE  TRANSMITTAL  DOCUMENT*

1.   Name and address of submitter  (or all joint submitters**)

"Smith Chemical  Corporation              Jones Chemical Company
 1234 West Smith Street       -and-      5678 Wilson Blvd
 Cincinnati, OH 98765                    Covington, KY 56789



"Smith Chemical  Corp will  act as  sole  agent  for all submitters.

2.   Regulatory action in support of which this package is
     submitted

Use the EPA identification number  (e.g. 359-EUP-67) if you know
it.  Otherwise describe the type of request  (e.g.  experimental
use permit, data call-in - of xx-xx-xx date).

3.   Transmittal date

4.   List of submitted studies

     Vol 1.    Administrative materials - forms, previous corres-
               pondence with Project Managers, and so forth.

     Vol 2.    Title of first study in the submittal (Guideline
               No.)

     Vol n     Title of nth study in the submittal  (Guideline
               No.)

     *    Applicants commonly provide this information in a tran-
          smittal letter.   This remains an acceptable practice so
          long as all four elements are included.

     *    Indicate which of the J9int submitters is empowered to
          act on behalf of all joint submitters in any matter
          concerning data compensation or subsequent use or
          release of the data.


Company Official: 	
                    Name                Signature

Company Name       	

Company Contact:  	 	
                    Name                Phone
                                66

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                   ATTACHMENT 2
SAMPLE STUDY TITLE PAGE FOR A NEWLY SUBMITTED STUDY
                    Study Title
   (Chemical name)  - Magnitude  of  Residue  on  Corn
                  Data  Requirement
                  Guideline 171-4
                       Author
                   John C. Davis
                 Study  Completed On
                  January 5, 1979
               Performing Laboratory
           ABC Agricultural Laboratories
                 940 West  Bay Drive
               Wilmington,  CA  39897
               Laboratory Project ID
                     ABC 47-79
                    Page 1 of X
   (X is the total number of pages in the study)
                         67

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                            ATTACHMENT 3

             STATEMENTS  OF DATA CONFIDENTIALITY CLAIMS

1. No claim of confidentiality under FIFRA §10(d)(1)(A),(B),  or (C).

        STATEMENT OF NO  DATA CONFIDENTIALITY CLAIMS
   No  claim of  confidentiality is made for any information contained in this
   study on the basis of  its falling within the scope of FIFRA
   6§10(d)(1)(A),  (B),  or (C).


   Company 	


   Company Agent: 	Typed Name	 Date:	


   	Title	  	Signature	
2. Claim of confidentiality under FIFRA §10(d)(1)(A),  (B),  or (C).
   Information  claimed confidential on the basis of its falling within the
   scope of FIFRA §10(d)(1)(A),  (B), or (C) has been removed to a
   confidential appendix, and is  cited by cross-reference number in the body
   of  the study.


    Company: 	


    Company Agent: 	Typed Name	 Date:	


   	Title	  Signature 	
             STATEMENT OF DATA  CONFIDENTIALITY  CLAIMS

NOTE: Applicants for  permanent or temporary tolerances  should
note that  it is OPP policy that no permanent tolerance,  temporary
tolerance,  or request for an emergency  exemption incorporating an
analytical  method, can be approved unless the applicant  waives
all claims  of confidentiality for the analytical method.   These
analytical  methods are published in the FDA Pesticide Analytical
Meth9ds  Manual, and therefore cannot be claimed as confidential.
OPP implements this policy by returning submitted analytical
methods,  for which confidentiality claims have been  made,  to the
submitter,  to obtain  the  confidentiality waiver before  they can
be processed.
                                  68

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                          ATTACHMENT 4

      SUPPLEMENTAL STATEMENT OF DATA CONFIDENTIALITY CLAIMS
     For any portion of a submitted study that is not described
by FIFRA §10(d)(1)(A), (B),  or (C),  but for which y9u claim
C9nfidential treatment 9n another basis, the following informa-
tion must be included within a Supplemental Statement of Data
Confidentiality Claims:

     •    Identify specifically by page and line number(s) each
          portion of the study for which you claim
          confidentiality.

     •    Cite the reasons why the cited passage qualifies for
          confidential treatment.

     •    Indicate the length of time--until a specific date or
          event,  or permanently--for which the information should
          be treated as confidential.

     •    Identify the measures taken to guard against undesired
          disclosure of this information.

     •    Describe the extent to which the information has been
          disclosed, and what precautions have been taken in con-
          nection with those disclosures.

     •    Encl9se C9pies of any pertinent determinations of
          confidentiality made by EPA, other Federal agencies, of
          courts concerning this information.

     •    If y9u assert that disclosure of this information would
          be likely to result in substantial harmful effects to
          you, describe th9se harmful effects and explain why
          they should be viewed as substantial.

     •    If you assert that the informati9n in voluntarily sub-
          mitted, indicate whether you believe disclosure of this
          information might tend to lessen the availability to
          EPA of similar information in the future, and if so,
          how.
                                69

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                                   ATTACHMENT 5

              EXAMPLES OF SEVERAL  CONFIDENTIAL ATTACHMENTS

Example  1.  (Confidential  word or phrase  that has  been  deleted
from  the study)
    CROSS REFERENCE NUMBER 1       This cross reference number is used in the study in place of the
                                     following paragraph (s) at the indicated volume and page
                                     references.
    DELETED WORDS OR PHRASE:              Ethylene Glycol
    PAGE         LINES  REASON FOR THE DELETION                      FIFRA
    REFERENCE
     6            14     Identity of Inert Ingredient                           §10(d)(C)
    28           25
    100           19
Example 2. (Confidential paragraph(s) that have been deleted from the study)
 CROSS REFERENCE NUMBER 5       This cross reference number is used in the study in place of the
                                   following paragraph (s) at the indicated volume and page
                                   references.
  DELETED PARAGRAPH(S) :
        (                                                                   )
        (       Reproduce the deleted paragraph (s) here                              )
 PAGE         LINES REASON FOR THE DELETION               FIFRA REFERENCE
  20.           2-17   Description of the quality control process          § 1 0 (d) ( 1) (C)
Example 3. (Confidential pages that have been deleted from the study)
 CROSS REFERENCE NUMBER 7      This cross reference number is used in the study in place of the
                                  following paragraph (s) at the indicated volume and page
                                  references.
 DELETED PAGES(S):  are attached immediately behind this page

 PAGES        REASON FOR THE DELETION               FIFRA REFERENCE
 35-41.        Description of product manufacturing process            § 10 (d) (1) (A)
                                           70

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                             ATTACHMENT 6.

            SAMPLE GOOD LABORATORY PRACTICE STATEMENTS

Example 1.
     This  study meets the requirements for 40 CFR Part  160

           Submitter 	

           Sponsor   	
Example 2.
    This study does not meet the  requirements of 40  CFR  Part 160, and
    differs  in the following ways:

    1.	

    2.	

    3.	

          Submitter	

          Sponsor	
          Study Director_
Example 3.
    The submitter of this study was neither the sponsor of this study nor
    conducted  it, and does not know whether it has  been conducted in
    accordance with 40 CFR Part 160.

          Submitter
                                    71

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                              ATTACHMENT  7.
                     FORMAT OF THE SUBMITTAL PACKAGE
                       Transmittal Document

                            Related Administrative Materials
                            (e.g. Method of Support Statement, etc.)

                                   Other materials about the submittal
                                   (e.g., summaries of groups of studies
                                   to aid in their review).

                                           Studies submitted as unique
                                           to the format below.
                      FORMAT OF SUBMITTED STUDIES
                • Study title page.

                      Statement of Confidentiality Claims.

                           GLP and flagging* statements - as appropriate.

                                 Body of the study, with English
                                 language translation if required.
                                     Appendices to the study.
                                          Title Page of the Confidential
                                          Attachment.
                                             Confidential Attachment.
                                               Supplemental Statement
                                               of Confidentiality Claims
                                      When flagging requirements
                                      are finalised.
                 Documents which must be submitted as
                 appropriate to meet established requirements.

                      Documents submitted at submitter's option.
LEGEND
                                       72

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PR Notice 91-2
      73

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74

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              UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

                             WASHINGTON, B.C. 20460
                                                         OFFICE OF
                                                     PREVENTION, PESTICIDES
                                                     AND TOXIC SUBSTANCES
                          PR NOTICE 91-2

         NOTICE  TO MANUFACTURERS,  PRODUCERS,  FORMULATORS,
                  AND REGISTRANTS OF PESTICIDES

ATTENTION: Persons Responsible for Federal Registration of
Pesticide Products.

SUBJECT: Accuracy of Stated Percentages for Ingredients
Statement

I.  PURPOSE:

     The purpose of this notice is to clarify the Office of
Pesticide P^gram's P9licy with respect to the statement of
percentages in a pesticide's label's ingredient statement.
Specifically, the amount  (percent by weight) of ingredient(s)
specified in the ingredient statement on the label must be stated
as the nominal concentration of such ingredient(s), as that  term
is defined in 40 CFR 158.153(1). Accordingly, the Agency has
established the nominal concentration as the only acceptable
label claim for the amount of active ingredient in the product.

II.  BACKGROUND

     For some time the Agency has accepted two different methods
9f identifying on the label what percentage is claimed for the
ingredient(s) contained in a pesticide. Some applicants claimed a
percentage which represented a level between the upper and the
lower certified limits. This was referred to as the nominal
concentration. Other applicants claimed the lower limit as the
percentage of the ingredient(s) that would be expected to be
present in their product at the end of the product's shelf-life.
Unfortunately, this led to a great deal of confusion among the
regulated industry, the regulators, and the consumers as to
exactly how much of a given ingredient was in a given product.
The Agency has established the nominal concentration as the  only
acceptable label claim for the amount of active ingredient in the
product.

     Current regulations require that the percentage listed  in
the active ingredient statement be as precise as possible
reflecting go9d manufacturing practices 40 CFR 156.10(g)(5). The
certified limits required for each active ingredient are intended
to encompass any such "good manufacturing practice" variations 40
CFR 158.175(c)(3).

     The upper and lower certified limits, which must be proposed
in connection with a product's registration, represent the
amounts of an ingredient that may legally be present 40 CFR
158.175. The lower certified limit is used as the enforceable
lower limit for the product composition according to FIFRA
section 12(a)(1)(C),  while the nominal concentration appearing on
the label would be the routinely achieved concentration used for
calculation of dosages and dilutions.

     The nominal concentration would in fact state the greatest
degree of accuracy that is warranted with respect to actual


                                75

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product compositi9n because the nominal concentration would be
the amount of active ingredient typically found in the product.

     It is imp9rtant for registrants to note that certified
limits for active ingredients are not considered to be trade
secret information under FIFRA section 10(b).  In this respect the
certified limits will be routinely provided by EPA to States for
enforcement purposes, since the nominal concentration appearing
on the label may not represent the enforceable composition for
purposes of section 12(a)(1)(C).

III. REQUIREMENTS

     As described below under Unit V. " COMPLIANCE SCHEDULE," all
currently registered products as well as all applications for new
registration must comply with this Notice by specifying the
nominal C9ncentrati9n expressed as a percentage by weight as the
label claim in the ingredient(s)  statement and equivalence
statements if applicable (e.g., elemental arsenic, metallic zinc,
salt of an acid).  In addition, the requirement for performing
sample analyses of five or more representative samples must be
fulfilled. C9pies of the raw analytical data must be submitted
with the nominal ingredient label claim. Further information
about the analysis requirement may be found in the 40 CFR
158.170. All products are required to pr9vide certified limits
for each active, inert ingredient, impurities of toxicological
significance(i. e.,  upper limit(s) 9nly) and on a case by case
basis as specified by EPA.  These limits are to be set based on
representative sampling and chemical analysis(i.e., quality
control) of the product.

     The format of the ingredient statement must conform to 40
CFR 156-Labeling Requirements For Pesticides and Devices.

     After July 1,  1997, all pesticide ingredient Statements must
be changed to nominal concentration.

IV. PRODUCTS THAT REQUIRE EFFICACY DATA

     All pesticides are required to be efficacious. Therefore,
the certified lower limits may not be lower then the minimum
level to achieve efficacy.  This is extremely important for
products which are intended to C9ntrol pests which threaten the
public health, e.g., certain antimicrobial and rodenticide
products. Refer to 40 CFR 153.640.

     In those cases where efficacy limits have been established,
the Agency will not accept certified lower limits which are below
that level for the shelf life of the product.

V. COMPLIANCE SCHEDULE

     As described earlier,  the purpose of this Notice is to make
the registration process more uniform and more manageable for
both the agency and the regulated community. It is the Agency's
intention to implement the requirements of this notice as
smoothly as possible so as not to disrupt or delay the Agency's
high priority programs,  i.e.,  reregistration,  new chemical, or
fast track (FIFRA section 3(c)(3)(B). Therefore,
applicants/registrants are expected to comply with the
requirements of this Notice as follows:

     (1)  Beginning July 1, 1991, all new product registrations
          submitted to the Agency are to comply with the
          requirements of this Notice.
                                76

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     (2)  Registrants having products subject to reregistration
          under FIFRA section 4(a) are to comply with the
          requirements of this Notice when specific products are
          called in by the Agency under Phase V of the
          Reregistration Program.

     (3)  All other products/applications that are not subject to
          (1) and  (2) ab9ve will have until July 1, 1997, to
          comply with this Notice. Such applications should note
          "Conversion to Nominal Concentrations on the
          application form. These types Or amendments will not be
          handled as "Fast Track" applications but will be
          handled as routine requests.

VI. FOR FURTHER INFORMATION

Contact Tyrone Aiken for information or questions concerning
this notice on (703) 308-7031.


                                   /s/
                         Anne E. Lindsay, Director
                         Registration Division (H-7505C)
                                77

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78

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APPENDIX F. Generic Data Call-in
               79

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80

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                         GENERIC DATA CALL-IN NOTICE
CERTIFIED MAIL
Dear Sir or Madam:


This Notice requires you and other  registrants of pesticide products containing  the  active
ingredient(s) identified in Attachment  1 of this Notice, the Data Call-In Chemical Status Sheet,
to submit certain data as noted herein to the U.S. Environmental Protection Agency (EPA, the
Agency). These  data are necessary to maintain the continued registration of your  product(s)
containing this active ingredient(s).  Within 90 days  after you receive this Notice you must
respond as set forth in Section III below.  Your response must state:

1.     how you will comply with the requirements set forth in this Notice and its Attachments 1
       through 4; or,

2.     why  you believe you are exempt from the requirements listed in this Notice and in
       Attachment 3, Requirements Status and Registrant's Response Form, (see section III-B);
       or,

3.     why you believe EPA should not require your submission of data in the manner specified
       by this Notice (see section III-D).

       If you do not respond  to this Notice, or if you do not  satisfy EPA that you will comply
with its requirements or should be exempt or excused from doing so, then the registration of your
product(s) subject to this Notice will be subject to suspension.  We have provided a list of all of
your products subject to this Notice in  Attachment 2, Data Call-in Response Form, as well as a
list  of all registrants who were sent this Notice  (Attachment 4).

       The authority  for this Notice is section 3(c)(2)(B)  of the Federal Insecticide, Fungicide and
Rodenticide Act  as  amended (FIFRA), 7 U.S.C.  section 136a(c)(2)(B).  Collection of this
information is authorized under the Paperwork Reduction Act by OMB Approval No. 2070-0107
(expiration date 12-31-92).

     This Notice  is divided into six sections and five Attachments.  The Notice itself contains
information and instructions applicable to all Data  Call-In Notices.  The Attachments contain
specific chemical information and instructions.  The six sections of the Notice are:

       Section I      -      Why You Are Receiving This Notice
       Section II     -      Data Required  By This Notice
       Section III    -      Compliance With Requirements  Of This Notice
       Section IV    -      Consequences Of Failure To Comply With This Notice
       Section V     -      Registrants' Obligation To Report Possible  Unreasonable
                           Adverse Effects
       Section VI    -      Inquiries  And Responses To This Notice

                                          81

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   The Attachments to this Notice are:

       Attachment 1  -      Data Call-in Chemical Status Sheet
       Attachment 2  -      Data Call-in Response Form
       Attachment 3  -      Requirements Status And Registrant's Response Form
       Attachment 4  -      List Of All Registrants Sent This Data Call-in Notice
SECTION I.  WHY YOU ARE RECEIVING THIS NOTICE

      The Agency has reviewed existing data for this active ingredient(s) and reevaluated the
data needed to support continued registration of the subject active ingredient(s).  This reevaluation
identified additional data necessary to assess the health and safety of the continued use of products
containing this active ingredient(s). You have been sent this Notice because you have product(s)
containing the subject active ingredient(s).

SECTION II. DATA REQUIRED BY THIS NOTICE

      A.     DATA REQUIRED

             The data required by this Notice are specified in Attachment 3,  Requirements
      Status and Registrant s Response Form.  Depending on the results of the studies required
      in this Notice, additional testing may be required.

      B.     SCHEDULE FOR SUBMISSION OF DATA

             You are required to submit the data or otherwise satisfy the  data requirements
      specified in Attachment 3, Requirements Status and Registrant's Response Form, within
      the time frames provided.
       C.     TESTING PROTOCOL

             All studies required under this Notice must be conducted in accordance with test
       standards outlined in the Pesticide Assessment Guidelines for those studies for which
       guidelines have been established.

             These EPA  Guidelines are  available from the National Technical Information
       Service (NTIS), Attn: Order Desk, 5285 Port Royal Road, Springfield, Va 22161 (tel:
       703-487-4650).

             Protocols approved  by  the  Organization  for  Economic  Cooperation  and
       Development (OECD)  are also acceptable if the OECD-recommended test standards
       conform to  those specified in the Pesticide Data Requirements regulation (40 CFR §
       158.70).  When using the OECD protocols, they should be modified as appropriate so that
       the data generated by the study will satisfy the requirements  of 40 CFR §  15o. Normally,
       the Agency  will not extend deadlines for  complying with data requirements when the
       studies were  not conducted in accordance with acceptable standards.  The OECD protocols
       are available from OECD, 1750 Pennsylvania Avenue N.W., Washington, D.C. 20006.

             All new studies and proposed protocols submitted in response to this Data Call-In
       Notice must  be in accordance with Good Laboratory Practices  [40 CFR Part 160.3(a) (6)].
                                         82

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       D.    REGISTRANTS  RECEIVING  PREVIOUS SECTION  3(c)(2)(B) NOTICES
             ISSUED BY  THE AGENCY

             Unless otherwise noted herein, this Data Call-in does not in any way supersede or
       change the requirements of any previous Data Call-in(s), or any other agreements entered
       into with the Agency pertaining to such prior Notice.  Registrants must comply with the
       requirements  of all Notices to avoid  issuance of a Notice  of Intent to Suspend their
       affected products.


SECTION III.       COMPLIANCE WITH REQUIREMENTS OF THIS NOTICE

       A.    SCHEDULE FOR RESPONDING TO THE AGENCY

              The appropriate responses initially required by this Notice must be submitted to
       the Agency within 90 days after your receipt of this Notice. Failure to adequately respond
       to this Notice within 90 days of your receipt will be a basis for issuing a Notice of Intent
       to Suspend (NOIS)  affecting your products. This and other bases for issuance  of NOIS due
       to failure  to comply with this Notice are presented in Section IV-A and IV-B.

             B.     OPTIONS FOR RESPONDING TO THE AGENCY

             The options for responding to this Notice are:  1) voluntary cancellation, 2)  delete
       use(s),  (3)  claim  generic data exemption,  (4) agree to satisfy  the data requirements
       imposed by this Notice or (5) request a data waiver(s).

             A  discussion of how to respond if you chose the Voluntary Cancellation option, the
       Delete Use(s) option  or  the  Generic Data  Exemption  option is presented below.  A
       discussion of the various options available  for satisfying the data  requirements of this
       Notice is contained in Section III-C. A discussion  of options relating to requests for data
       waivers is contained in Section III-D.

             There are two forms that accompany this Notice of which, depending upon your
       response,  one or both must be used in your response to the Agency.  These forms are the
       Data-Call-in Response Form (Attachment 2) and the Requirements  Status and Registrant's
       Response  Form (Attachment 3). The Data Call-In Response  Form must be submitted as
       part  of every response  to this Noticed  Flease note  that  the  company's authorized
       representative is required to sign the first page of the Data Call-in Response Form and
       Requirements Status and Registrant's Response Form (if this form is required) and initial
       any subsequent pages. The forms contain separate detailed instructions on the response
       options.  Do not alter the printed material.  If you have questions or need assistance in
       preparing your response, call or write the contact person identified in Attachment 1.

             1.      Voluntary Cancellation - You may avoid the requirements of this Notice  by
             requesting  voluntary  cancellation of your  product(s)  containing the  active
             ingredient (s) that  is the subject of  this Notice. If you wish  to voluntarily cancel
             your  product,  you must submit  a completed  Data Call-In Response Form
             indicating your  election of this option. Voluntary cancellation is item number b
             on the Data Call-In Response Form. If you choose this option, this is the only form
             that you are required to complete.

                    If you  choose to voluntarily cancel your  product,  further  sale and
             distribution of your product after the effective date  of cancellation must be in
             accordance with the Existing Stocks provisions of this  Notice which are contained
             in  Section IV-C.
                                          83

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2.     Use  Deletion  -  You may avoid the requirements  of this Notice  by
eliminating the uses or your product to which the requirements apply. If you wish
to amend your registration to delete uses, you must submit the Requirements Status
and Registrant's Response Form, a completed application for amendment, a copy
of your  proposed amended  labeling,  and  all  other information required for
processing the application.  Use deletion is option number 7 on the Requirements
Status and Registrant's Response Form. You must also complete a Data Call-In
Response Form by signing the certification, item number 8. Application forms for
amending registrations  may be  obtained from the Registration Support and
Emergency Response Branch, Registration Division, (703)  308-8358.

       If you choose to delete the use(s) subject to this Notice or uses subject to
specific data requirements, further sale, distribution,  or use of your product after
one year from the due date of your 90 day response, must bear an amended label.

3.     Generic Data Exemption - Under section 3(c)(2)(D) of FIFRA, an applicant
for  registration of a product is exempt from  the requirement to submit or cite
generic data  concerning an active ingredient(s)  if the active  ingredient(s) in the
product is derived exclusively from  purchased,  registered pesticide products
containing the  active  ingredient(s).   EPA has concluded,  as an exercise of its
discretion, that it normally will not suspend the registration  of a product which
would qualify and continue  to qualify for the generic data exemption in section
3(c)(2)(D) of FIFRA. To qualify, all of the following requirements must be met:

       a.      The active ingredient(s) in your registered product must be present
       solely because  of incorporation of  another registered product  which
       contains the subject active ingredient(s) and is purchased from a source not
       connected with you; and,

       b.      every  registrant  who   is  the  ultimate  source  of  the  active
       ingredient (s) in your product subject to this DCI must be in compliance
       with the requirements of this Notice and must remain in compliance; and

       c.      you must  have provided  to  EPA an  accurate and  current
       "Confidential Statement of Formula" for each of your products to which
       this Notice applies.

       To apply for the Generic Data Exemption you must submit a completed
Data Call-in Response Form,  Attachment 2 and  all supporting documentation. The
Generic Data Exemption is item number 6a on the Data Call-In Response Form.
If you claim a generic data exemption you  are  not required to complete the
Requirements Status and Registrant s Response Form.  Generic Data Exemption
cannot be selected as an option for product specific data.

       If you are granted a  Generic Data Exemption, you rely on the efforts of
other persons to provide the Agency with the required data.  If the registrant^)
who have  committed  to  generate  and submit the required data fail to take
appropriate steps to meet the requirements or are no longer in compliance with this
Data Call-In Notice, the Agency will consider that both  they and you are not in
compliance and will normally initiate proceedings to suspend the registrations of
both your and their product(s), unless you commit to submit and do submit the
required data within the specified time. In such cases the Agency generally will
not grant a time extension for submitting the data.

4.     Satisfying the Data Requirements of this Notice -  There are various options
available  to  satisfy the data requirements  of this Notice.  These options are


                             84

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       discussed in Section III-C of this Notice and comprise options 1 through 6 on the
       Requirements Status and Registrant's Response Form and option 6b and 7 on the
       Data Caii-ln Response Form! it you choose  option 6b or 7, you must submit both
       forms as well as any  other information/data pertaining to the option chosen to
       address the data requirement.

       5.     Request for Data Waivers.  Data waivers are discussed in Section III-D of
       this Notice and are covered by  options 8 and 9  on the Requirements Status and
       Registrant's Response Form. If you choose one of these options, you must submit
       both forms as well as any other  information/data pertaining to the option chosen
       to address the data requirement.

C.     SATISFYING THE DATA REQUIREMENTS OF THIS NOTICE

       If you acknowledge on the Data Call-in Response Form that you agree to satisfy
the data requirements (i.e. you select option 6b and/or '(), then you must select one of the
six options on the Requirements Status  and Registrant's Response Form related to data
production for each data requirement.  Your option selection should be entered under item
number 9, "Registrant Response." The six options related to data production are the first
six options  discussed under item 9 in the instructions for completing the Requirements
Status and Registrant's Response Form.  These six options are listed immediately below
with  information in parentheses to guide registrants to additional instructions provided in
this Section. The options are:

       1.     I will generate and submit data within the specified time frame (Developing
             Data),

       2.     I have entered into an  agreement with one or more registrants to develop
             data jointly (Cost Sharing),

       3.     I have made offers to cost-share (Offers to Cost Share),

       4.     I am submitting an existing study that has not been submitted previously to
             the Agency by anyone  (Submitting an Existing Study),

       5.     I  am  submitting or citing  data to upgrade a study  classified by EPA as
             partially acceptable and upgradeable (Upgrading a Study),

       6.     I  am  citing an  existing study that EPA has classified as acceptable or  an
             existing study that has been submitted but not  reviewed by the Agency
              (Citing an Existing Study).

       Option 1, Developing  Data —

             If you choose to develop the required data it must be in conformance with
       Agency deadlines and with other Agency requirements as referenced herein and in
       the attachments. All data generated and submitted must comply with the Good
       Laboratory Practice (GLP) rule (40 CFR Part 160), be conducted according to the
       Pesticide Assessment  Guidelines  (PAG),  and  be in  conformance with the
       requirements of PR Notice 86-5.  In addition, certain studies require Agency
       approval of test protocols in advance of study  initiation.  Those studies for which
       a protocol must be submitted have been identified in the Requirements Status and
       Registrant's Response Form and/or footnotes to the form.  It you wish to use a
       protocol which differs from the  options discussed in Section II-C of this Notice,
        ou must submit a detailed description of the proposed protocol and your reason
       'or wishing to use it.  The Agency may choose to reject a protocol not specified


                                    85

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in Section II-C.   If the Agency rejects your protocol you will be notified in
writing, however, you should be aware that rejection of a proposed protocol will
not be a basis for extending the deadline for submission or data.

       A progress report must be submitted for each study within 90 days from the
date you are required to commit to generate  or undertake some other means to
address that study requirement, such as making an offer to cost-share or agreeing
to share in the cost of developing that study.  A 90-day progress report must be
submitted for all  studies.  This 9T)-day progress report must include the date the
study was or will be initiated and, for studies to be started within  12 months of
commitment, the name and address of the laboratory(ies) or individuals who are
or will be conducting the study.

       In addition, if the time frame for submission of a final report is more than
1 year, interim reports must be submitted at 12 month intervals from the date you
are required to commit to generate or otherwise address the requirement for the
study. In addition to the other information specified in the preceding paragraph,
at a minimum,  a brief description of current activity on and the status of the study
must be included as well as a full description of any problems encountered since
the last progress report.

       The time  frames in the Requirements Status and Registrant's Response
Form are the  time frames that the Agency  is allowing for the submission of
completed study reports or protocols. The noted deadlines run from the date of
the receipt of this Notice by the registrant.  If the data are not submitted by the
deadline, each registrant is subject to receipt of a Notice of Intent to Suspend the
affected registration(s).

       If you cannot submit the data/reports to the Agency in the time required by
this Notice and intend to seek additional time to meet the requirement(s), you must
submit a request to the Agency which includes:  (1) a detailed description of the
expected difficulty and (2) a proposed  schedule  including alternative  dates for
meeting such requirements on a step-by-step basis.  You must explain any technical
or  laboratory  difficulties and provide  documentation  from  the laboratory
performing  the testing.   While EPA is considering your request, the original
deadline remains.  The Agency will respond to your request in writing. If EPA
does not grant your request, the original deadline remains.  Normally, extensions
can  be requested only  in cases of extraordinary testing problems beyond the
expectation or control of the registrant.  Extensions will not be given in submitting
the 90-day responses.    Extensions will not be  considered if  the request for
extension is not made in a timely fashion;  in no event shall an extension request be
considered if it is submitted at or after the lapse of the subject deadline.

Option  2, Agreement to Share in Cost to Develop Data  —

       If you choose to enter into an agreement to share in the cost of producing
the required data but will not be submitting the data yourself, you must provide the
name of the registrant who will be submitting the data. You must also provide
EPA with documentary evidence that  an agreement  has been  formed.  Such
evidence may be your  letter  offering to join  in an agreement and  the other
registrant's acceptance of your offer, or a written statement by the parties that an
agreement exists.  The agreement to produce the data need not specify all of the
terms of the final arrangement between the parties or the mechanism to resolve the
terms.  Section 3(c)(2)(B) provides that if the parties cannot resolve the terms of
the agreement they may resolve their differences through binding arbitration.
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Option 3, Offer to Share in the Cost of Data Development —

       If you have made an offer to pay in an attempt to enter into an agreement
or amend an existing agreement to meet the requirements of this Notice and have
been unsuccessful, you may request EPA (by selecting this option) to exercise its
discretion not to suspend your registration (s), although you do not comply with the
data submission requirements of this Notice. EPA has determined that as a general
policy, absent other relevant considerations, it will not suspend the registration of
a product of a registrant who  has in good faith sought and continues  to seek to
enter into a joint data development/cost sharing program, but the other registrant(s)
developing the data has refused to accept your offer. To qualify for this option,
you must submit documentation to the Agency proving that you have made an offer
to another registrant (who has an obligation to submit data)  to share in the burden
of developing that data.  You  must also submit to the Agency a completed EPA
Form 8570-32, Certification of Offer to  Cost Share in the Development of Data.
In addition, you must demonstrate that the other registrant to whom the offer was
made has not accepted your  offer to  enter into a cost sharing agreement  by
including a  copy of your offer and  proof of the other registrant s receipt of that
offer  (such as a certified mail receipt).  Your offer must, in addition to anything
else, offer to share in the burden of producing the data upon terms to be agreed or
failing agreement to be bound by binding arbitration as provided by FIFRA section
3(c) (2) (B) (iii) and must not qualify this offer.   The other registrant must also
inform EPA of its election of an option to develop and submit the data required by
this Notice by submitting a Data Call-In Response Form and a Requirements  Status
and Registrant's  Response Form  committing to develop and  submit the data
required by  this Notice.

       In order for you to avoid  suspension under  this option, you may  not
withdraw your offer to share in the  burdens of developing the data.  In addition,
the other registrant must fulfill its commitment to  develop and submit the data as
required by this Notice.  If the other registrant fails to develop the  data or for some
other reason is subject to suspension, your registration as well as that of the other
registrant will normally be subject to initiation  of suspension proceedings,  unless
you commit  to submit, and do submit the required data in the specified time frame.
In such cases, the Agency generally will not grant a time extension for submitting
the data.
Option 4, Submitting an Existing Study —

       If you choose to submit an existing study in response to this Notice, you
must determine that the study satisfies the requirements imposed by this Notice.
You may only submit a study that has not been previously submitted to the Agency
or previously cited by anyone. Existing studies are studies which predate issuance
of this Notice.  Do  not use this option if you are submitting data to  upgrade a
study.  (See Option 5).

       You should be aware that if the Agency determines that the study is not
acceptable, the Agency will  require you to comply with  this  Notice, normally
without  an extension of the required date of submission.   The Agency may
determine at any time that a study is not valid and needs to be repeated.

       To  meet the requirements of the  DCI Notice for submitting an  existing
study, all of the following three criteria must be clearly met:
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a.      You must certify at the time that the existing study is submitted that
the raw data and specimens from the  study are available for audit and
review and you must identify where they are available.  This must be done
in accordance with the requirements of the Good Laboratory  Practice
(GLP)  regulation, 40 CFR Part 160. As stated in 40 CFR 160.3(7) " raw
data means any laboratory  worksheets, records, memoranda, notes,  or
exact  copies thereof,  that  are the result  of original observations and
activities of a study and are necessary for the reconstruction and evaluation
of the report of that study. In the event that exact transcripts of raw data
have been prepared (e.g., tapes which  have been transcribed verbatim,
dated,  and verified accurate by signature), the  exact copy  or exact
transcript may be substituted for the original source as raw data. Raw data
may include photographs,  microfilm  or microfiche copies, computer
printouts,  magnetic media, including dictated observations, and recorded
data from automated instruments."  The term "specimens", according to  40
CFR  160.3(7), means "any  material  derived from  a test  system for
examination or analysis."

b.      Health  and safety  studies completed after  May 1984 must also
contain all GLP-required quality assurance and quality control information,
pursuant to the requirements of 40 CFR Part 160.  Registrants must also
certify at  the time of submitting the  existing study that such  GLP
information is available  for post-May  1984  studies  by  including  an
appropriate statement on or  attached to the study signed by an authorized
official or representative of the registrant.

c.      You must certify that each study fulfills the acceptance criteria for
the Guideline  relevant to  the study provided in the FIFRA Accelerated
Reregistration Phase 3 Technical Guidance and that the study has been
conducted  according to the Pesticide Assessment Guidelines (PAG)  or
meets  the purpose of the PAG (both available from NTIS).  A study not
conducted according  to the  PAG may  be  submitted  to the Agency for
consideration if the registrant believes  that the study clearly meets the
purpose of the PAG.  The registrant is referred to 40 CFR 158.70 which
states the Agency's policy regarding acceptable protocols. If you wish to
submit the study,  you must, in addition to certifying that the purposes of
the PAG  are met by  the  study,  clearly articulate the rationale why you
believe the study  meets the purpose of the PAG, including copies of any
supporting information or  data. It has been the Agency's experience that
studies completed prior to January 1970 rarely satisfied the purpose of the
PAG and that necessary raw data are usually not available for such studies.
       If you submit an existing study, you must certify that the study
meets all requirements of the criteria outlined above.

       If EPA has previously reviewed  a protocol for a study you are
submitting, you must identify any action taken  by the Agency on the
protocol and must indicate, as part of your certification, the manner in
which all Agency comments, concerns, or issues were addressed in the
final protocol and study.

       If you know of a study pertaining to any requirement in this Notice
which does not meet the criteria outlined  above but does contain factual
information regarding unreasonable adverse effects, you must notify the

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       Agency of such a study. If such a study is in the Agency's files, you need
       only cite it along with the notification. If not in the Agency's files, you
       must submit a summary and copies as required by PR Notice 86-5.

Option 5,  Upgrading a Study —

       If a study has been classified as partially acceptable and upgradeable, you
may submit data to upgrade that study. The Agency will review the data submitted
and  determine  if the  requirement is  satisfied.   If the Agency  decides the
requirement is not satisfied, you may still be required to submit new data normally
without any time  extension.  Deficient, but upgradeable studies will  normally be
classified  as supplemental.  However, it is important to note that not all studies
classified  as supplemental are upgradeable.  If you have questions regarding the
classification of a study or whether a study  may be upgraded, call  or write the
contact person listed in Attachment 1. If you submit data to upgrade an existing
study you must satisfy or supply information to correct all deficiencies in the study
identified by EPA.  You must provide a clearly  articulated rationale of how the
deficiencies have been remedied or corrected and why the study should be  rated
as acceptable to EPA. Your submission must also specify the MRID number(s) of
the study which you are attempting to upgrade and must be in conformance with
PR Notice 86-5.

       Do not  submit  additional  data for  the  purpose  of  upgrading a study
classified as unacceptable and determined by the Agency as not capable of being
upgraded.

       This option  should  also  be used  to  cite data that has been previously
submitted to upgrade a study, but has not yet been reviewed by the Agency.  You
must provide the MRID number of the data submission as well as the MRID
number of the study being upgraded.

       The criteria for submitting an existing study, as specified  in  Option 4
above, apply to all data submissions intended to upgrade studies.  Additionally
your submission of data intended to upgrade studies must be  accompanied by a
certification that you comply with each of those criteria as well as a  certification
regarding  protocol compliance with Agency requirements.

Option 6,  Citing Existing Studies —

       If you choose to cite a study that has been previously submitted to EPA,
that study must have been previously classified by EPA as acceptable or it must be
a study which has not yet been reviewed by  the Agency.  Acceptable toxicology
studies generally will have been classified as 'core-guideline" or ' core minimum.'
For ecological effects studies, the classification generally would be a rating of
"core."  For all other disciplines the classification would be "acceptable."  With
respect to any studies for which you wish to select this option you must provide the
MRID number of the study you are citing and, if the study has been reviewed by
the Agency, you must provide the Agency's  classification of the study.

       If you are citing a study of which you are not the original data submitter,
you must submit a completed! copy of EPA Form  8570-31,  Certification with
Respect to Data Compensation Requirements.
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D.     REQUESTS FOR DATA WAIVERS

       There are two types of data waiver responses to this Notice. The first is a request
for a low volume/minor use waiver and the second is a waiver request based on your
belief that the data requirement(s) are inapplicable and do not apply to your product.

       1.     Low Volume/Minor Use Waiver —  Option 8 on the Requirements Status
       and Registrant's Response Eorm.  Section 3(c)(2)(A) of FIFKA requires EPA to
       consider the appropriateness of requiring data for  low volume,  minor use
       pesticides. In implementing this provision EPA considers as low volume pesticides
       only those active ingredient (s) whose total production volume for all pesticide
       registrants is small.  In determining whether to grant a  low  volume, minor use
       waiver  the Agency  will consider the  extent,  pattern and volume of use, the
       economic incentive to conduct the testing, the importance of the pesticide, and the
       exposure and risk from  use of the pesticide.  If an active ingredient (s) is used for
       both high volume  and  low volume uses, a low volume  exemption will not  be
       approved.  If all uses  of an active ingredient(s) are low volume and the combined
       volumes for all uses are also low, then an exemption may be  granted, depending
       on review of other information outlined below. An exemption will not be granted
       if any registrant of the active ingredient(s) elects to  conduct the testing.  Any
       registrant receiving a low volume minor use waiver must remain within the sales
       figures in their forecast supporting the waiver request in order to remain qualified
       for such waiver. If granted a waiver, a registrant will be required, as a condition
       of the waiver, to submit annual sales reports.  The Agency will  respond to requests
       for waivers in writing.

             To apply for a low volume, minor use waiver, you must  submit the
       following  information,  as  applicable to your product(s), as part of your 90-day
       response to this Notice:

             a.      Total  company sales  (pounds  and dollars)  of  all registered
             product(s) containing  the active ingredient(s).  If applicable to the active
             ingredient(s), include foreign sales for those products that are not registered
             in this country  but are applied to sugar  (cane  or beet),  coffee, bananas,
             cocoa,  and other such crops.  Present the above information by year for
             each of the past five years.

             b.      Provide  an estimate of the sales (pounds and dollars) of the active
             ingredient (s) for each  major use site.  Present the above information  by
             year for each  of the past five years.

             c.      Total  direct production  cost of product (s)  containing the active
             ingredient (s)  by year for the past five years. Include  information on raw
             material cost,  direct labor cost, advertising, sales and  marketing, and any
             other significant costs  listed separately.

             d.      Total indirect production cost (e.g. plant  overhead, amortized plant
             and equipment) charged to product(s) containing  the active ingredient(s)  by
             year for the past five years.  Exclude all non-recurring costs that were
             directly related to the active  ingredient(s),  such  as  costs  of initial
             registration and  any data development.

             e.      A list of each  data requirement  for which you seek a waiver.
             Indicate the type of waiver sought and the  estimated cost to you (listed
             separately for  each data requirement and associated test) of conducting the
             testing needed to fulfill each of these data requirements.

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              f.      A list of each data requirement for which you are not seeking any
              waiver and the  estimated  cost to you (listed separately for each data
              requirement and associated test) of conducting the testing needed to fulfill
              each of these data requirements.

              g.      For each of the next ten years, a year-by-year forecast of company
              sales (pounds and dollars)  of the active ingredient(s), direct production
              costs  of  product(s)  containing the  active  ingredient(s)  (following the
              parameters  in item  c above), indirect production costs  of  product(s)
              containing the active ingredient(s)  (following the parameters in item d
              above), and costs of data development pertaining to the active ingredient (s).

              h.      A description of the importance and unique benefits of the active
              ingredient (s) to users. Discuss the use patterns and the effectiveness of the
              active  ingredient(s)  relative  to  registered  alternative chemicals  and
              non-chemical control strategies.  Focus on benefits unique  to the active
              ingredient(s), providing information that is as quantitative as possible.  If
              you do not have quantitative data upon which to base your estimates, then
              present the reasoning used to derive your estimates.  To assist the Agency
              in determining the degree of importance of the active  ingredient (s) in terms
              of its benefits, you should provide information on any of the following
              factors, as applicable to your product(s):

                     (1)     documentation of the usefulness of the active ingredient (s)
              in Integrated Pest Management, (b) description of the beneficial impacts on
              the  environment  of  use  of the  active  ingredient(s), as opposed to its
              registered alternatives, (c)  information on the breakdown of the active
              ingredient(s)  after use and on its persistence in the  environment, and (d)
              description of its usefulness against a pest(s) of public health significance.

       Failure to submit sufficient information for the Agency to make a determination
regarding a request for a low volume minor use waiver will result in denial of the request
for a waiver.

       2.      Request for Waiver of Data  —Option 9 on the Requirements  Status and
       Registrant s Response FofrrT  This  option may be used  if you believe that a
       particular data requirement should not apply because the corresponding use is no
       longer registered  or the requirement is inappropriate.  You  must submit a rationale
       explaining why you believe the data requirements should not apply.  You must also
       submit the current label(s)  of your product(s) and,  if a current copy of your
       Confidential Statement of Formula is not already  on file you must submit a current
       copy.

              You will be informed of the Agency's decision in writing. If the Agency
       determines that  the data requirements  of this Notice  do not  apply  to  your
       product (s),  you will not be  required to supply  the  data pursuant  to section
       3(c)(2)(B).  If EPA determines that the data are required for your prpduct(s), you
       must choose a  method of meeting the requirements of this Notice within the time
       frame provided by this Notice.  Within 30 days of your receipt of the Agency's
       written decision, you must submit a revised Requirements Status and Registrant's
       Response Form indicating the option chosen.
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IV.    CONSEQUENCES OF FAILURE TO COMPLY WITH THIS NOTICE

       A.    NOTICE OF INTENT TO SUSPEND

             The Agency may issue a Notice  of Intent to Suspend products subject to this Notice
       due to failure by a registrant to comply with the requirements of this Data Call-In Notice,
       pursuant to FIFRA section 3(c)(2)(B). Events which may be the basis for issuance of a
       Notice of Intent to Suspend include, but  are not limited to, the following:

             1.      Failure to respond as required by this Notice within 90 days of your receipt
                    of this Notice.

             2.      Failure to submit on the  required schedule an acceptable proposed or final
                    protocol when such is required to  be submitted to the Agency for review.

             3.      Failure to submit on the required schedule an adequate progress report on
                    a study as required by this Notice.

             4.      Failure to submit on the required  schedule acceptable data as required by
                    this Notice.

             5.      Failure to take a required action or  submit adequate information pertaining
                    to any option chosen to address the data requirements (e.g., any required
                    action or information pertaining to submission or citation of existing studies
                    or  offers, arrangements,  or  arbitration on the sharing  of costs or the
                    formation of Task Forces, failure to comply with the terms  of an agreement
                    or arbitration concerning joint data development or failure to comply with
                    any terms of a data waiver).

             6.      Failure to submit supportable certifications as to the conditions of submitted
                    studies, as required by Section III-C of this Notice.

             7.      Withdrawal of an offer  to  share in the cost of developing required data.

             8.      Failure of the registrant to whom you have tendered an offer to share in the
                    cost of developing data and provided proof of the registrant's receipt of
                    such offer, or failure of a registrant on whom you rely for a generic data
                    exemption either to:

                    a.      inform EPA of intent to develop and submit the data required by
                    this Notice on a Data Call-In Response Form and a Requirements Status
                    and Registrant's Response Form;  of,

                    b.      fulfill  the commitment to develop  and  submit the  data as required
                    by this Notice; or,

                    c.      otherwise take appropriate steps to meet the requirements stated in
                    this Notice, unless you commit to  submit and do submit the required data
                    in the specified  time frame.

             9.      Failure to take any required or appropriate steps, not mentioned above, at
             any time following the  issuance of this Notice.


       B.    BASIS   FOR   DETERMINATION   THAT   SUBMITTED   STUDY   IS
             UNACCEPTABLE


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       The Agency may determine that a study (even if submitted within the required
time) is unacceptable and constitutes a basis for issuance of a Notice of Intent to Suspend.
The grounds for suspension include,  but are not limited to, failure to meet any of the
following:

       1.      EPA requirements specified in the Data Call-in Notice or other documents
       incorporated by reference (including, as applicable, EPA Pesticide Assessment
       Guidelines,  Data  Reporting  Guidelines, and GeneTox Health  Effects  Test
       Guidelines) regarding the design, conduct, and reporting of required studies.  Such
       requirements include, but are  not limited to, those relating to test material,  test
       procedures, selection of species, number  of animals,  sex and distribution of
       animals, dose and effect levels to be tested or attained,  duration of test, and, as
       applicable, Good Laboratory Practices.

       2.      EPA requirements regarding the submission of protocols, including the
       incorporation or any changes required by the Agency following review.

       3.      EPA requirements regarding the reporting of data, including the manner
       of reporting, the completeness of  results,  and the adequacy  of any  required
       supporting (or raw) data, including, but not limited to, requirements referenced or
       included in this Notice or contained in PR 86-5.  All studies must be submitted in
       the form of a final report; a preliminary report will not be considered to fulfill the
       submission requirement.

C.     EXISTING STOCKS OF SUSPENDED OR CANCELLED PRODUCTS

       EPA has  statutory authority to permit continued  sale,  distribution and use of
existing stocks of a pesticide product which has been suspended or  cancelled if doing so
would  be consistent  with the purposes of the Federal  Insecticide, Fungicide,  and
Rodenticide Act.

       The Agency has determined that such disposition by registrants of existing stocks
for a suspended registration when a section 3 (c) (2) (B) data request  is outstanding would
generally not be consistent with the Act's purposes.  Accordingly, the Agency anticipates
granting registrants permission to sell, distribute, or use existing  stocks of suspended
produces) only in exceptional circumstances.  If you believe such disposition of existing
stocks of your product(s) which may be suspended for failure to  comply with this Notice
should  be permitted, you have the burden of clearly demonstrating to EPA that granting
such permission would be consistent with the  Act. You must also explain why an  ' existing
stocks" provision is necessary, including a statement of the quantity of existing stocks and
your estimate of the time required for  their sale, distribution, and use.  Unless you meet
this burden the Agency will not consider any request pertaining to the continued sale,
distribution, or use of your existing stocks after suspension.

       If you request a voluntary cancellation of your product(s) as a response to  this
Notice and your  product is in full compliance with all Agency requirements,  you will
have,  under most circumstances, one year  from the date  your  90  day response to  this
Notice  is due, to sell, distribute, or use  existing stocks.  Normally, the Agency will  allow
persons other than the registrant such as independent distributors, retailers and end users
to sell, distribute or use such existing stocks until the stocks are exhausted. Any sale,
distribution  or use of stocks of voluntarily  cancelled products containing  an active
ingredient(s)  for which the Agency has particular risk concerns will be determined on
case-by-case basis.

       Requests for voluntary cancellation received  after the  90  day response period
required by this Notice will not result in the Agency granting any additional time to sell,


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       distribute, or use existing stocks beyond a year from the date the 90 day response was due
       unless you demonstrate to the Agency that you are in full compliance with all Agency
       requirements,  including the requirements of this Notice.  For example, if you decide to
       voluntarily cancel your registration six months before a 3 year study is scheduled to be
       submitted, all progress reports and other information necessary to establish that you have
       been conducting the  study in an acceptable  and  good faith manner must have been
       submitted to the Agency, before EPA will consider granting an existing stocks provision.

SECTION V. REGISTRANTS' OBLIGATION TO REPORT POSSIBLE UNREASONABLE
             ADVERSE EFFECTS

       Registrants are  reminded that FIFRA section 6 (a) (2) states that if at any  time after a
pesticide is registered a registrant has additional factual information regarding unreasonable
adverse effects on the environment by the pesticide, the registrant shall submit the information
to the Agency.  Registrants must notify the Agency of any factual information they have, from
whatever source, including but not limited to interim or preliminary results of studies, regarding
unreasonable adverse effects on man or the environment. This requirement continues as long as
the products are registered by the Agency.

SECTION VI.       INQUIRIES AND RESPONSES TO THIS NOTICE

       If you have any questions regarding the requirements and procedures established by this
Notice, call the contact person listed in Attachment 1, the Data Call-In Chemical Status Sheet.

       All responses  to this Notice (other than voluntary cancellation requests and  generic data
exemption claims) must include a completed Data Call-in Response Form (Attachment 2) and a
completed Requirements Status and Registrant's Response  Form (Attachment 3) and any other
documents required by this Notice,  ana should be submitted to the contact person  identified in
Attachment 1. If the voluntary cancellation or generic data exemption option is chosen, only  the
Data Call-In Response Form  need be submitted.

       The Office of Compliance (OC) of the Office of Enforcement and Compliance Assurance
(OECA), EPA, will be  monitoring the data being generated in response to this Notice.

                                              Sincerely yours,
                                              Louis P. True, Jr., Acting Director
                                              Special Review
                                               and Reregistration Division
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Attachment 1. Chemical Status Sheet
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Disodium Cyanodithioimidocarbonate DATA CALL-IN CHEMICAL STATUS SHEET

INTRODUCTION

       You have been sent  this Generic Data Call-In Notice because you have  product(s)
containing Disodium Cyanodithioimidocarbonate.

       This Generic Data Call-In Chemical Status Sheet contains an overview of data required
by this notice, and point or contact tor inquiries pertaining to the reregistration of Disodium
Cyanodithioimidocarbonate.  This attachment is to be used in conjunction with (1) the Generic
Data Call-In  Notice,  (2) the Generic  Data Call-In Response Form (Attachment 2),  (3) the
Requirements Status and Registrant's Form (Attachment 2), (4) a list of registrants receiving this
DCI (Attachment 4), (5) the EPA Acceptance Criteria (Attachment 5), and (6) the Cost Share and
Data Compensation Forms in replying to this Disodium Cyanodithioimidocarbonate Generic Data
Callln  (Attachment F). Instructions and guidance accompany each form.

DATA REQUIRED BY THIS NOTICE
       The additional data requirements needed to complete the generic database for Disodium
Cyanodithioimidocarbonate are contained in the Requirements Status and Registrant's Response,
Attachment C.  The Agency has  concluded that additional product chemistry data on Disodium
Cyanodithioimidocarbonate are needed. These data are needed to fully complete the reregistration
of all eligible  Disodium Cyanodithioimidocarbonate products.

INQUIRIES AND RESPONSES TO  THIS NOTICE

       If you  have any  questions regarding  the  generic data requirements and procedures
established by this Notice, please contact Bonnie Adler at (703) 308-8523.

       All responses to this Notice for the generic  data requirements should be submitted to:

             Bonnie Adler,  Chemical Review Manager
             Accelerated Reregistration Branch
             Special Review and Registration Division (7508W)
             Office of Pesticide Programs
             U.S. Environmental Protection Agency
             Washington, D.C.  20460
             RE:  Disodium Cyanodithioimidocarbonate
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Attachment 2. Generic DCI Response Forms Inserts (Form
                 A) plus Instructions
                          99

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SPECIFIC INSTRUCTIONS FOR THE GENERIC DATA CALL-IN RESPONSE FORM

       This Form is designed to be used to respond to call-ins for generic and product specific
data for the purpose of reregistering pesticides under the Federal  Insecticide Fungicide and
Rodenticide Act. Fill out this form each time you are responding to a data call-in for which EPA
has sent you the form entitled "Requirements Status and Registrant's Response."

       Items  1-4 will have been preprinted on the form Items 5 through 7 must be completed by
       the registrant as appropriate Items 8 through 11 must be completed by the registrant before
       submitting a response to the Agency.

       Public  reporting burden for this collection of information is estimated to average 15
minutes per response, including time for reviewing instructions, searching existing data sources,
gathering and maintaining the data needed, and completing and reviewing the  collection of
information.  Send comments regarding the burden estimate or any other aspect of this collection
of information, including  suggesting for reducing this burden, to Chief, Information  Policy
Branch, PM-223, U S Environmental Protection Agency, 401 M St , S W , Washington, D C
20460; and to the Office of Management and Budget,  Paperwork Reduction Project 2070-0107,
Washington, D C 20503.

INSTRUCTIONS

       Item  1.       This item identifies your company name, number and address.

       Item 2.       This item identifies the ease number, ease name,  EPA chemical number
                    and chemical name.

       Item 3.       This item identifies the date and type of data call-in.

       Item 4.       This item identifies the EPA product registrations relevant to the data
                    call-in. Please note that you are also responsible for informing the Agency
                    of your response regarding any product that you believe may be covered
                    by this data call-in but that is not listed by the Agency in Item 4.  You must
                    bring any  such apparent omission to the Agency's attention within the
                    period required for submission  of this response form.

       Item 5.       Cheek this item  for each  product registration  you  wish  to  cancel
                    voluntarily.  If a registration number is listed for a product for which you
                    previously requested voluntary cancellation, indicate in Item 5 the date of
                    that request.  You do not need to complete any item on the Requirements
                    Status and Registrant's Response Form for any product that is voluntarily
                    cancelled.

       Item 6a.      Check this item if this data call-in is for generic data as indicated in Item
                    3 and if you are  eligible for a Generic Data Exemption for the chemical
                    listed in Item 2  and used in  the  subject product.   By  electing this
                    exemption,  you  agree to the  terms and conditions of a Generic Data
                    Exemption  as explained in the Data Call-In Notice.

                    If you are eligible for or  claim a Generic Data Exemption, enter the EPA
                    registration  Number of each registered source of that active ingredient that
                    you use in your product.

                    Typically, if you purchase an EPA-registered product from one or more
                    other producers  (who, with respect to  the incorporated  product,  are in
                    compliance with this and-any other outstanding Data Call-in Notice), and

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              incorporate that product into all your products, you may complete this item
              for all products listed on this form If, however, you produce the active
              ingredient yourself, or use any unregistered product (regardless of the fact
              that some  of your sources are registered), you may not claim a Generic
              Data Exemption and you may not select this item.

Item 6b.      Check this Item if the data  call-in is a generic data call-in as indicated in
              Item  3 and if you are agreeing to satisfy the generic data requirements of
              this data  call-in.     Attach the  Requirements  Status  and  Registrant's
              Response Form that indicates how you will satisfy those requirements.

Item 7a.      Check this item if this call-in if a data call-in as indicated in Item 3  for a
              manufacturing use product (MUP), and if your product is a manufacturing
              use product for which you agree to supply product-specific data. Attach
              the Requirements Status and  Registrants Response  Form that indicates how
              you will satisfy those requirements.

Item 7b.      Check this item if this call-in is a  data call-in for an end use product (EUP)
              as indicated in Item 3 and if your product is an end use product for which
              you agree to supply product-specific data.  Attach  the Requirements Status
              and Registrant s Response Form that indicates how you will satisfy those
              requirements.

Item 8.        This certification statement must  be signed by an authorized representative
              of  your company and  the person signing must  include  his/her  title.
              Additional pages used in your response must be initialled and dated in the
              space provided for the certification.

Item 9.        Enter the date  of signature.

Item 10.      Enter the name of the person EPA should contact with questions regarding
              your  response.

Item 11.      Enter the phone number of your company contact.
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Attachment 3. Requirements Status and Registrants'
 Response Forms Inserts (Form B) plus Instructions
                       103

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SPECIFIC INSTRUCTIONS FOR COMPLETING THE REQUIREMENTS STATUS AND
REGISTRANTS RESPONSE FORM

Generic Data

This form is  designed  to  be  used for registrants  to  respond to call-in-  for  generic and
product-specific data as part of EPA's reregistration program under the Federal Insecticide
Fungicide and Rodenticide  Act.  Although the form  is the same for both product specific and
generic data, instructions for completing the forms  differ slightly.   Specifically,  options for
satisfying product specific data requirements do not include (1) deletion or uses or (2) request for
a low  volume/minor  use waiver.   These  instructions  are for completion of generic data
requirements.

EPA has developed this form individually for each data call-in addressed to each registrant, and
has preprinted this form with a number of items.  DO NOT use this form for any other active
ingredient.

Items 1 through 8 (inclusive)  will have been preprinted on the form. You must complete all other
items on this form by typing or printing legibly.

Public reporting burden for this  collection of information is estimated to average  30 minutes per
response, including time for reviewing instructions, searching existing data sources, gathering and
maintaining the data needed, and completing and reviewing the collection of information.  Send
comments regarding the burden estimate or  any other aspect of this collection of information,
including suggesting for reducing this  burden, to Chief, Information Policy Branch, PM-223,
U.S. Environmental Protection Agency, 401 M St., S.W., Washington, D.C. 20460; and to the
Office of Management and Budget, Paperwork Reduction Project 2070-0107, Washington, D.C.
20503.

INSTRUCTIONS

Item 1.       This item identifies your company name, number, and address.

Item 2.       This item identifies the  case  number, case name, EPA chemical  number and
             chemical name.

Item 3.       This item identifies the date and type of data call-in.

Item 4.       This item identifies the guideline reference numbers of studies required to support
             the product(s) being reregistered. These guidelines, in addition to requirements
             specified in the Data Call-In Notice, govern the conduct of the required studies.

Item 5.       This item identifies the study title associated with the guideline reference number
             and whether protocols and 1, 2, or 3-year progress reports are required to be
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Item 6.
submitted in connection with the study.  As noted in Section III of the Data Call-In
Notice, 90-day progress reports are required for all studies.

      If an asterisk appears in Item 5, EPA has attached information relevant to
      this guideline reference number to the Requirements Status and Registrant's
      Response Form.

This item identifies the code associated with the use pattern of the pesticide. A
brief description of each code  follows:
                    A.
                    B.
                    C.
                    D.
                    E.
                    F.
                    G.
                    H.
                    I.
                    J.
                    K.
                    L.
                    M.
                    N.
                    0.
                          Terrestrial food
                          Terrestrial feed
                          Terrestrial non-food
                          Aquatic food
                          Aquatic non-food outdoor
                          Aquatic non-food industrial
                          Aquatic non-food residential
                          Greenhouse food
                          Greenhouse non-food crop
                          Forestry
                          Residential
                          Indoor food
                          Indoor non-food
                          Indoor medical
                          Indoor residential
Item 7.
This item identifies the code assigned  to the substance that must be used for
testing.  A brief description of  each code follows.
                    EP
                    MP
                    MP/TGAI

                    PAI
                    PAI/M
                    PAI/PAIRA

                    PAIRA
                    PAIRA/M
                    PAIRA/PM

                    TEP
                    TEP_*

                    TEP/MET
                    TEP/PAI/M

                    TGAI/PAIRA

                    TGAI
                    TGAI/TEP

                    TGAI/PAI

                    MET
                    IMP
                          End-Use Product
                          Manufacturing-Use Product
                          Manufacturing-Use Product and Technical Grade
                          Active Ingredient
                          Pure Active Ingredient
                          Pure Active Ingredient and Metabolites
                          Pure Active Ingredient  or Pure Active Ingredient
                          Radiolabelled
                          Pure Active Ingredient Radiolabelled
                          Pure Active Ingredient Radiolabelled and Metabolites
                          Pure  Active Ingredient  Radiolabelled and  Plant
                          Metabolites
                          Typical End-Use Product
                          Typical End-Use Product, Percent Active Ingredient
                          Specified
                          Typical End-Use Product and Metabolites
                          Typical End-Use Product or Pure Active Ingredient
                          and Metabolites
                          Technical Grade Active Ingredient or Pure Active
                          Ingredient Radiolabelled
                          Technical Grade Active Ingredient
                          Technical  Grade  Active Ingredient or  Typical
                          End-Use Product
                          Technical Grade Active Ingredient or Pure Active
                          Ingredient
                          Metabolites
                          Impurities
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                    DEGR              Degradates

       *See: guideline comment

Item 8.        This item identifies the time frame allowed for submission of the study or protocol
              identified in item 2. The time frame runs from the date of your receipt of the Data
              Call-In Notice.

Item 9.        Enter the appropriate Response Code or Codes to show how you intend to comply
              with each data requirement. Brief descriptions of each code follow. The Data Call-
              in Notice contains a fuller description of each of these options.

              1.     (Developing Data) I will conduct a new study and submit it within the time
                    frames specified in  item 8 above.  By indicating that I have chosen this
                    option, I certify that I will  comply with all the requirements pertaining to
                    the conditions for submittal of this study as outlined in the Data Call-in
                    Notice and that I will provide the protocol and progress reports required in
                    item 5 above.

              2.     (Agreement to Cost Share) I have entered  into an agreement with one or
                    more registrants to develop data jointly. By indicating that I have chosen
                    this option, I certify that I will comply with  all the requirements pertaining
                    to sharing in the cost of developing data as outlined in the Data Call-In
                    Notice.

              3.     (Offer to Cost Share) I have made an offer to enter into an  agreement with
                    one or more registrants to develop data Jointly. I am submitting a copy of
                    the form "Certification of Offer to Cost Share in the Development of Data"
                    that describes this offer/agreement.  By indicating that I have chosen this
                    option, I certify that I will  comply with all the requirements pertaining to
                    making an offer to share in the cost of developing data as outlined  in the
                    Data Call-in Notice.

              4.     (Submitting Existing  Data) I am submitting an existing study that has never
                    before been submitted to EPA. By indicating that I have chosen this option,
                    I  certify  that  this study meets all the requirements pertaining  to the
                    conditions for submittal of existing data outlined in the  Data Call-In Notice
                    and I  have attached the needed supporting information  along with this
                    response.

              5.     (Upgrading a Study)  I am submitting or citing data to upgrade a study that
                    EPA has classified as partially acceptable and potentially upgradeable. By
                    indicating that I have chosen this option, I certify that I have met all the
                    requirements pertaining to  the conditions for submitting or citing existing
                    data to  upgrade a  study  described  in the  Data Call-in Notice.  I am
                    indicating  on attached correspondence  the Master Record  Identification
                    Number  (MRID)  that EPA has assigned to the data that I am  citing as well
                    as the  MRID of the study I am attempting to upgrade.

              6.     (Citing a Study) I am  citing  an existing study  that has been previously
                    classified by EPA as acceptable, core, core minimum, or  a study that has
                    not yet  been reviewed  by the  Agency.  I am  providing the  Agency's
                    classification of the study.

              7.     (Deleting  Uses) I am attaching  an application for  amendment  to my
                    registration deleting  the  uses for which the data are required.

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             8.     (Low Volume/Minor Use Waiver Request) I have read the statements
                    concerning low volume-minor use data waivers in the Data Call-in Notice
                    and I request a low-volume minor use waiver of the data requirement.  I
                    am attaching  a detailed  justification to support this waiver request
                    including, among  other things,  all  information required to support  the
                    request. I understand that, unless modified by the Agency in writing,  the
                    data requirement as stated in the  Notice governs.

             9.     (Request for Waiver of Data) I have read the statements concerning data
                    waivers other than low volume minor-use data waivers in the Data Call-in
                    Notice and I request a waiver of the data requirement.  I am attaching an
                    identification of the basis for this waiver and a detailed justification to
                    support this waiver request. The justification includes, among other things,
                    all information required to support the request. I understand that,  unless
                    modified by the Agency in writing, the data requirement as stated in  the
                    Notice governs.

Item 10.      This item must be signed  by an authorized representative of your company. The
             person signing must include his/her title, and must initial and date all other pages
             of this form.

Item 11.      Enter the date of signature.

Item 12.      Enter the name of the person EPA should contact with questions regarding your
             response.

Item 13.      Enter the phone number of your company contact.
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108

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Attachment 4. List of Registrant(s) sent this DCI (Insert)
                          109

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110

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APPENDIX G.  Product Specific Data Call-in
                  in

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                               DATA CALL-IN NOTICE
CERTIFIED MAIL
Dear Sir or Madam:


This Notice requires you and other registrants of pesticide products containing the active
ingredient identified in Attachment 1 of this Notice, the Data Call-In Chemical Status Sheet, to
submit certain product specific data as noted herein to the U.S. Environmental Protection
Agency (EPA, the Agency). These data are necessary to maintain the continued registration
ofyour product(s) containing this active ingredient. Within 90 days after you receive this
Notice you must respond as set forth in Section III below. Your response must state:

       1.      How you  will comply with the requirements set forth in this Notice and its
              Attachments A through  G; or

       2.      Why you  believe you are exempt from the requirements listed in this Notice and
              in Attachment 3,  Requirements Status and Registrant's Response Form, (see
              section  III-B); or

       3.      Why you  believe EPA should not require your submission  of product specific
              data in the manner specified by this Notice (see section III-D).

       If you do not respond to this Notice, or if you do  not satisfy EPA that you will comply
with its requirements or  should be exempt or excused from doing so,  then the registration of
your product(s) subject to this Notice will be subject to suspension. We have provided a list
of all of your products subject to this Notice in Attachment 2, Data Call-In Response Form,  as
well as a list of all registrants who were sent this Notice (Attachment 6).

       The authority for this Notice is section 3(c)(2)(B)  of the Federal Insecticide, Fungicide
and Rodenticide Act as amended (FIFRA), 7 U.S.C. section 136a(c)(2)(B).  Collection of this
information is authorized under the Paperwork Reduction Act by OMB Approval No. 2070-
0107 (expiration date 12-31-92).
    This Notice is divided into six sections and seven Attachments.  The Notice itself contains
information and instructions applicable to all Data Call-In Notices. The Attachments contain
specific chemical information and instructions.  The six sections of the Notice are:

       Section I   -  Why You Are Receiving This Notice
       Section II  -  Data Required By This Notice
       Section III -  Compliance With Requirements Of This Notice
       Section IV -  Consequences Of Failure To Comply With This Notice
       Section V  -  Registrants' Obligation To Report Possible Unreasonable
                    Adverse Effects

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   Section VI -  Inquiries And Responses To This Notice

The Attachments to this Notice are:

   1  -    Data Call-In Chemical Status Sheet
   2  -    Product-Specific Data Call-in Response Form
   3  -    Requirements Status and Registrant's Response Form
   4  -    EPA Grouping or End-Use Products tor Meeting Acute Toxicology Data
          Requirements tor Reregistration
          EPA
       5  -    EPA Acceptance Criteria
       6  -    List or Registrants Receiving This Notice
       7  -    Cost Share and Data Compensation Forms, and Product Specific Data Report
             Form


SECTION I.  WHY YOU ARE RECEIVING THIS NOTICE

       The Agency has reviewed existing data for this active ingredient and reevaluated the
data needed to support continued registration of the subject active ingredient. The Agency has
concluded that the only additional data necessary are product specific data. No additional
generic data requirements are being imposed. You have  been sent this Notice because you
have product(s) containing the subject active ingredient.

SECTION II. DATA REQUIRED BY THIS NOTICE

II-A.  DATA REQUIRED

       The product specific data required by this Notice  are specified in Attachment 3,
Requirements Status and Registrant's Response Form. Depending on the results of the studies
required in this Notice, additional testing may be required.

II-B.  SCHEDULE FOR SUBMISSION  OF DATA

   You are required to submit the data or otherwise satisfy the data requirements specified in
Attachment 3, Requirements Status and Registrant's Response Form, within the time frames
provided.


II-C.  TESTING PROTOCOL

   All studies required under this Notice must be conducted in accordance with test standards
outlined in the Pesticide Assessment Guidelines  for those studies  for which guidelines have been
established.

       These EPA Guidelines are available from the National Technical Information Service
(NTIS), Attn: Order Desk, 5285 Port Royal Road, Springfield, Va 22161 (tel: 703-487-4650).

       Protocols approved by the Organization for Economic Cooperation and Development
(OECD) are also acceptable if the OECD-recommended test standards conform to those specified
in the Pesticide Data Requirements regulation (40 CFR § 158.70).  When using the OECD
protocols, they should be modified as appropriate so that the data generated by the study will
satisfy the requirements of 40 CFR § 158.  Normally, the Agency will not extend deadlines for
complying with data requirements when the studies were not conducted in accordance with
acceptable standards.  The OECD protocols are available from OECD,  1750 Pennsylvania
Avenue N.W., Washington,  D.C. 20006.
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       All new studies and proposed protocols submitted in response to this Data Call-in Notice
must be in accordance with Good Laboratory Practices [40 CFR Part 160.3(a)(6)].

II-D.  REGISTRANTS  RECEIVING PREVIOUS SECTION 3(c)(2)(B) NOTICES
     ISSUED BY THE AGENCY	

     Unless otherwise noted herein, this Data Call-in does not in any way supersede or change
the requirements of any previous Data Call-in(s), or any other agreements entered into with the
Agency pertaining to such prior Notice.  Registrants must comply with the requirements of all
Notices to avoid issuance of a Notice of Intent to Suspend their affected products.

SECTION III. COMPLIANCE WITH REQUIREMENTS OF THIS NOTICE

III-A.  SCHEDULE FOR RESPONDING TO THE AGENCY

        The appropriate responses initially required by this Notice for product specific data must
be submitted to the Agency within 90 days after your receipt of this Notice. Failure to
adequately respond to this Notice  within 90 days of your receipt will be a basis for issuing a
Notice of Intent to Suspend (NOIS)  affecting your products. This and other bases for issuance of
NOIS due to failure to comply with this  Notice are presented in Section IV-A and IV-B.

III-B.  OPTIONS FOR  RESPONDING TO THE AGENCY

       The options for responding to this Notice for product specific data are: (a) voluntary
cancellation, (b) agree to satisfy the product specific data requirements imposed by this notice or
(c) request a data waiver (s).

       A discussion  of how to respond if you chose the Voluntary Cancellation option is
presented below.  A discussion of the various options available for satisfying the product specific
data requirements of this Notice is contained in Section III-C.  A discussion of options relating to
requests for data waivers is contained in Section III-D.

       There are two forms that accompany this Notice of which, depending upon your response,
one or both must be  used in your response to  the Agency.  These forms are the Data-Call-in
Response Form and the Requirements Status and Registrant's  Response Form, Attachment 2  and
Attachment 3. The Data Call-in Response Form must be submitted as part of every response to
this Notice.  In addition, one copy or the Requirements Status  and Registrant's Response Form
must be submitted for each product  listed on the Data Call-In Response Form unless the
voluntary cancellation option is selected  or unless the product is identical to another (refer to the
instructions for completing the Data Call-In Response Form in Attachment 2).  Please note that
the company's authorized representative is required to sign the first page of the Data Call-In
Response Form and Requirements Status and  Registrant's Response Form (if this form is
required) and initial any subsequent pages. The forms contain separate detailed instructions on the
response options.  Do not alter the printed material.  If you have questions or need assistance  in
preparing your response, call or write the contact person (s) identified in Attachment 1.

       1. Voluntary  Cancellation  - You  may avoid the requirements of this Notice by requesting
voluntary cancellation of your product(s) containing the active  ingredient that is the subject of this
Notice. If you wish to voluntarily cancel your product, you must submit a completed Data Call-
In Response  Form, indicating your election of this option. Voluntary cancellation is item number
b on the Data Calf-In Response Form. If you  choose this option, this is the only form that you
are required  to complete.

       If you chose to voluntarily cancel your product, further sale and distribution of your
product after the effective date of cancellation must be in accordance with the Existing Stocks
provisions of this Notice which are  contained in Section IV-C.


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       2. Satisfying the Product Specific Data Requirements of this Notice  There are various
options available to satisfy the product specific data requirements of this Notice.  These options
are discussed in Section III-C of this Notice and comprise options 1 through 6 on the
Requirements Status and Registrant's Response Form and item numbers 7a  and 7b on the Data
Call-In Response Form. Deletion of a use(s) and the low volume/minor use option are not valid
options lor fulfilling product specific data requirements.

       3. Request for Product Specific Data Waivers.  Waivers for product specific data are
discussed in Section 111-D ol this Notice and are covered by option 7 on the Requirements Status
and Registrant's Response Form.  If you choose one of these options, you must submit both
forms as well as any other information/data pertaining to the option chosen  to address the data
requirement.

III-C  SATISFYING THE DATA REQUIREMENTS OF THIS NOTICE

       If you acknowledge on the Data Call-In Response Form that you agree to satisfy the
product specific data requirements (i.e. you select item number 7a  or 7b), then you must select
one of the six options on the Requirements Status and Registrant's  Response Form related to data
production for each data requirement. Your option selection should be entered under item
number 9,  "Registrant Response."  The six options  related to data production are the first six
options discussed under item 9 in the instructions for completing the Requirements Status and
Registrant's Response Form.  These six options  are listed immediately below with information in
parentheses to guide registrants to additional instructions provided  in this Section.  The options
are:

        1)     I will generate and submit data within the specified time frame (Developing Data)
        2)     I have entered into an agreement with one or more registrants to develop data
             jointly (Cost Sharing)
              I have made offers to cost-share (Offers to Cost Share)
              I am submitting  an existing study  that has not been submitted previously to the
              Agency by anyone (Submitting an Existing Study)
       (5)     I am submitting  or citing data to upgrade a study classified by EPA as partially
              acceptable and upgradeable  (Upgrading a Study)
       (6)     I am citing an existing study that EPA has classified  as acceptable or an existing
              study that has been submitted but  not reviewed by the Agency (Citing an Existing
              Study)

       Option 1  Developing Data — If you choose to develop the required data it must be in
conformance with Agency deadlines and with other Agency requirements as referenced herein
and in the attachments. All data generated and submitted must comply with the Good Laboratory
Practice (GLP) rule (40 CFR Part 160), be conducted according to the Pesticide Assessment
Guidelines (PAG), and be  in conformance  with the requirements of PR Notice 86-5.

       The time frames in the Requirements Status  and Registrant's Response Form are the time
frames that the Agency is allowing for the  submission of completed study reports. The noted
deadlines run from the  date of the receipt of this Notice by the registrant. If the data are not
submitted by the deadline, each registrant is subject to receipt of a  Notice of Intent to Suspend the
affected registration(s).

       If you cannot submit the data/reports to the Agency in the time required by this Notice
and intend to seek additional time to meet the requirements(s),  you must submit a request to the
Agency which includes: (1)  a detailed description of the expected difficulty and (2) a proposed
schedule including alternative dates for meeting such requirements  on a step-by-step basis.  You
must explain any technical or laboratory difficulties and provide documentation from the

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laboratory performing the testing.  While EPA is considering your request, the original deadline
remains. The Agency will respond to your request in writing.  If EPA does not grant your
request, the original deadline remains.  Normally, extensions can be requested only in cases of
extraordinary testing problems beyond the expectation or control of the registrant. Extensions
will not be given in submitting the 90-day responses. Extensions will not be considered if the
request for extension is not made in a timely fashion; in no event shall an extension request be
considered if it is submitted at or after the lapse of the subject deadline.

       Option 2, Agreement to Share in Cost to Develop Data  — Registrants may only choose
this option for acute toxicity data and certain efficacy data and only if EPA has indicated in the
attached data tables that your product and at least one other product are similar for purposes of
depending on the same data.  If this is the case, data may be  generated for just one of the
products in the group.  The registration number of the product for which data will be submitted
must be noted in the agreement to cost share by the registrant selecting this option.  If you choose
to enter into an agreement to share in the cost of producing the required  data but will not be
submitting the data yourself, you must provide the name of the registrant who will be submitting
the data.  You must also provide EPA with documentary evidence that an agreement has been
formed. Such evidence may be your letter offering to join in an agreement and the other
registrant's acceptance of your offer, or a written statement by the parties that an agreement
exists. The agreement to produce the data need not specify all of the terms of the final
arrangement between the parties or the mechanism to resolve the terms.  Section 3(c)(2)(B)
provides that if the parties cannot resolve the terms of the agreement they may resolve  their
differences through binding arbitration.

       Option 3, Offer to Share in the Cost of Data Development — This option only applies to
acute  toxicity and certain efficacy data as described in option 2 above. If you have made an offer
to pay in an attempt to enter into an agreement or amend an existing agreement to meet the
requirements of this Notice and have  been unsuccessful, you  may request EPA  (by selecting this
option) to  exercise its discretion not to suspend your registration^), although you do not comply
with the data submission requirements of this Notice. EPA has determined that as a general
policy, absent other relevant considerations, it will not suspend the registration  of a product  of a
registrant who has in good faith sought and continues to seek to enter into a joint data
development/cost sharing program, but the other registrant(s) developing the data has refused to
accept your offer.  To qualify for this option, you must submit documentation to the Agency
proving that you have made an offer  to another registrant (who has an obligation to submit data)
to share in the burden of developing that data.  You must also submit to the Agency  a completed
EPA Form 8570-32,  Certification of  Offer to Cost Share in the Development of Data,
Attachment 7.  In addition, you must demonstrate that the other registrant to whom the offer was
made  has not accepted your offer to enter into a cost sharing  agreement by including a  copy  of
your offer and proof of the other registrant's receipt of that offer (such as a certified mail
receipt).  Your offer must, in addition to anything else, offer to share in  the burden of  producing
the data upon terms to be agreed or failing agreement to be bound by binding arbitration as
provided by FIFRA section 3(c) (2) (B) (iii) and must not qualify this offer.  The other registrant
must also  inform EPA of its election  of an option to  develop  and submit  the data required by this
Notice by  submitting a Data Call-In Response Form and a Requirements  Status and Registrant's
Response Form committing to develop and submit the data required by this Notice.

       In order for you to avoid suspension under this option, you may not withdraw your offer
to share in the burdens of developing the data. In addition, the other registrant must fulfill its
commitment to develop and submit the data as required by this Notice. If the other registrant
fails to develop the data or for some  other reason is subject to suspension, your registration as
well as that of the  other registrant will normally be subject to initiation of suspension
proceedings, unless you commit to submit, and do submit the required data in the specified time
frame. In such cases, the Agency generally will not grant a time extension for submitting the
data.
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       Option 4, Submitting an Existing Study — If you choose to submit an existing study in
response to this Notice, you must determine that the study satisfies the requirements imposed by
this Notice.  You may only submit a study that has not been previously submitted to the Agency
or previously cited by anyone.  Existing studies are studies which predate issuance of this Notice.
Do not use this option if you are submitting data to upgrade a study. (See Option 5).

       You should be aware that if the Agency determines that the study is not acceptable,  the
Agency will require you to comply with this Notice, normally without an extension of the
required date of submission.  The Agency may determine at any time that a study is not valid and
needs to be repeated.

       To meet the requirements of the DCI Notice for submitting an existing study, all of the
following three criteria must be clearly met:

       a.     You must certify at the time that the existing study is submitted that the raw  data
              and specimens  from the study are available for audit and review and you must
              identify where  they are available.  This must be done in accordance with the
              requirements of the  Good Laboratory Practice (GLP) regulation, 40 CFR Part
              160. As stated  in 40 CFR 160.3(j) " 'raw data' means any laboratory worksheets,
              records, memoranda, notes, or exact copies thereof, that are the result of original
              observations and activities of a study and are necessary for the reconstruction and
              evaluation of the report of that study.  In the event that exact transcripts of raw
              data have been prepared (e.g.,  tapes which have been transcribed verbatim, dated,
              and verified accurate by signature), the exact copy or exact transcript may be
              substituted for  the original source as raw data.  Raw data'  may include
              photographs, microfilm or microfiche copies,  computer printouts, magnetic media,
              including dictated observations, and recorded data from automated instruments."
              The term "specimens", according to 40 CFR 160.3(k), means "any material
              derived from a test system for examination or  analysis."

       b.     Health and safety studies completed after May 1984 must also contain all GLP-
              required quality assurance and quality control  information,  pursuant to the
              requirements of 40 CFR Part 160.  Registrants must also certify at the time of
              submitting the  existing study that such GLP information is available for post-May
              1984 studies by including an appropriate  statement on or attached to the study
              signed by an authorized official or representative of the registrant.

       c.     You must certify that each study fulfills the acceptance criteria for the Guideline
              relevant to the  study provided in the FIFRA Accelerated Reregistration Phase 3
              Technical Guidance and that the study has been conducted according to the
              Pesticide Assessment Guidelines (PAG) or  meets the purpose of the PAG (both
              available from  NTIS).  A study not conducted according to the PAG may be
              submitted to the Agency for consideration if the registrant believes that the study
              clearly meets the purpose of the PAG. The registrant is referred to 40 CFR
              158.70 which states the Agency's policy  regarding acceptable protocols. If you
              wish to submit the study, you  must, in addition to certifying that the purposes of
              the PAG are met by the study,  clearly articulate the rationale why you believe the
              study meets the purpose of the  PAG, including copies of any supporting
              information or  data.  It has been the Agency's experience that studies completed
              prior to January 1970 rarely satisfied the purpose of the PAG and that necessary
              raw data are usually not available for such studies.


       If you submit an existing study, you must certify that the study meets all requirements of
the criteria outlined above.
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       If you know of a study pertaining to any requirement in this Notice which does not meet
the criteria outlined above but does contain factual information regarding unreasonable adverse
effects, you must notify the Agency of such a study. If such  study is in the Agency's files, you
need only cite it along with the notification. If not in the Agency's files, you must submit a
summary and copies as required by PR Notice 86-5.

       Option 5, Upgrading a Study — If a study has been classified as partially acceptable and
upgradeable, you may submit data to  upgrade that study. The Agency will review the data
submitted and determine if the requirement is satisfied.  If the Agency decides the requirement is
not satisfied, you may still be required to submit new data normally without any time extension.
Deficient, but upgradeable studies will normally be classified as supplemental. However, it is
important to note that not all studies classified as supplemental are upgradeable. If you have
questions regarding the classification  of a study or whether a study may be upgraded, call or
write the contact person listed in Attachment  1.  If you submit data to upgrade an existing study
you must satisfy or supply information to correct all deficiencies in the study identified by EPA.
You must provide a clearly articulated rationale of~how the deficiencies have been remedied or
corrected and why the study should be rated as acceptable to EPA. Your submission must also
specify the MRID number (s) of the study which you are attempting to upgrade and must be in
conformance with PR Notice 86-5.

       Do not submit additional data  for the purpose of upgrading a study classified  as
unacceptable and determined by the Agency as not capable of being upgraded.

       This option should also be used to cite data that has been previously submitted to  upgrade
a study, but has not yet been reviewed by the Agency.  You must provide the MRID number of
the data submission as well as the MRID number of the study being upgraded.

       The criteria for submitting an  existing study, as specified in Option 4 above,  apply to all
data submissions intended to upgrade  studies.  Additionally your submission of data  intended to
upgrade studies must be accompanied by a  certification that you comply with each of those
criteria as well as a certification regarding protocol compliance with Agency requirements.

       Option 6, Citing Existing Studies — If you choose to cite a study that has been previously
submitted to EPA,  that study must have been previously classified by EPA as acceptable or it
must be a study which has not yet been reviewed  by the Agency.  Acceptable  toxicology studies
generally will have been classified as  "core-guideline" or ' core minimum." For all  other
disciplines the classification would be "acceptable." With respect to any studies for  which you
wish to select this option you must provide the MRID number of the study you are citing and, if
the study has been  reviewed by the Agency, you must provide the Agency's classification of the
study.

       If you are citing  a study of which you are  not the original data submitter, you must submit
a completed copy of EPA Form 8570-31, Certification with Respect to Data Compensation
Requirements.

       Registrants  who select one of  the above 6 options must meet all of the  requirements
described  in the instructions for completing the Data Call-in Response Form and the
Requirements Status and Registrant's  Response Form, as appropriate.

III-D  REQUESTS FOR DATA WAIVERS

             If you request a waiver for product specific data because you believe it is
inappropriate, you must attach a complete Justification for the request, including technical
reasons, data and references to relevant EPA regulations, guidelines or policies.  (Note:  any
supplemental data must be submitted  in the format required by PR Notice 86-5).  This will be the
only opportunity to state the reasons or provide information in support  of your request.  If the

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Agency approves your waiver request, you will not be required to supply the data pursuant to
section 3(c)(2)(B) of FIFRA.  If the Agency denies your waiver request, you must choose an
option for meeting the data requirements of this Notice within 30 days of the receipt of the
Agency's decision.  You must indicate and submit the option chosen on the Requirements Status
and Registrant's Response Form.  Product specific data requirements for product chemistry,
acute toxicity and efficacy (where appropriate) are required for all products  and the Agency
would grant a waiver only under  extraordinary circumstances.  You should also be aware that
submitting a waiver request will not automatically extend the due date for the study in question.
Waiver requests submitted
without adequate supporting rationale will be denied and the original due date will  remain in
force.

IV.  CONSEQUENCES OF FAILURE TO COMPLY WITH THIS NOTICE

IV-A NOTICE OF INTENT TO SUSPEND

       The Agency  may issue a Notice of Intent to Suspend products subject to this Notice due to
failure by a registrant to comply with the requirements of this Data Call-in Notice, pursuant to
FIFRA section 3(c) (2) (B). Events which may be  the basis for issuance of a  Notice of Intent to
Suspend include, but are not limited to, the following:

       1.     Failure to respond as required by this Notice within 90 days of your receipt of this
             Notice.

       2.     Failure to submit on the required schedule an acceptable proposed or final protocol
             when such is required to be submitted to the Agency for review.

       3.     Failure to submit on the required schedule an adequate progress report on a study
             as required by this Notice.

       4.     Failure to submit on the required schedule acceptable data as  required by this
             Notice.

       5.     Failure to take a required action or submit adequate information pertaining to any
             option chosen to address the data requirements  (e.g., any required action or
             information pertaining to submission or citation of existing studies or offers,
             arrangements, or arbitration on the sharing of costs or  the formation of Task
             Forces, failure to comply with the terms of an agreement or arbitration concerning
             joint data development or failure to comply with any terms of a data waiver).

       6.     Failure to submit supportable certifications as to the conditions of submitted
             studies, as required by Section III-C of this Notice.

       7.     Withdrawal of an offer to share in the cost of developing required data.

       8.     Failure of the registrant to whom you have tendered an offer  to share in the cost of
             developing data and provided proof of the registrant's receipt of such offer or
             failure of a registrant on whom you rely for a generic data exemption either to:

             a.     inform EPA of intent to develop and submit the data required by this
                    Notice on a Data Call-In Response Form and a  Requirements Status and
                    Registrant's Response Form;

             b.     fulfill the commitment to develop and submit the data  as required by this
                    Notice; or
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              c.     otherwise take appropriate steps to meet the requirements stated in this
                    Notice, unless you commit to submit and do submit the required data in the
                    specified time frame.

       9.      Failure to take any required or appropriate steps, not mentioned above, at any time
              following the issuance of this Notice.

IV-B.  BASIS FOR DETERMINATION THAT SUBMITTED STUDY IS
UNACCEP TABLE

       The Agency may determine that a study (even if submitted within the required time)  is
unacceptable and constitutes  a basis for issuance of a Notice of Intent to Suspend. The grounds
for suspension include, but are not limited to,  failure to meet any of the following:

       1.  EPA requirements specified in the Data Call-In Notice or other documents
       incorporated by reference (including, as applicable, EPA Pesticide  Assessment
       Guidelines, Data Reporting Guidelines, and GeneTox Health Effects Test Guidelines)
       regarding the design, conduct,  and reporting of required studies. Such requirements
       include, but are not limited  to,  those relating to test material, test procedures, selection of
       species, number of animals, sex and distribution of animals,  dose and effect levels to be
       tested or attained, duration of test, and, as applicable, Good  Laboratory Practices.

       2.  EPA requirements regarding the submission of protocols, including the incorporation
       of any changes required by  the Agency following review.

       3.  EPA requirements regarding the reporting of data, including the manner of reporting,
       the completeness of results, and the adequacy of any required supporting (or raw) data,
       including, but not limited to, requirements referenced or included in this Notice or
       contained in PR 86-5. All studies must be submitted in the form of a final report; a
       preliminary report will not be considered to fulfill the submission requirement.

IV-C EXISTING STOCKS  OF SUSPENDED OR CANCELLED PRODUCTS

       EPA has statutory authority to  permit continued sale, distribution and use of existing
stocks of a pesticide product which has been suspended or cancelled if doing so would be
consistent with the purposes  of the  Act.

       The Agency has determined that such disposition  by registrants  of existing stocks for a
suspended registration when a section  3 (c) (2) (B) data request is outstanding would generally not
be consistent with the Act's purposes.  Accordingly, the  Agency anticipates granting registrants
permission to sell, distribute, or use existing stocks of suspended product(s) only in exceptional
circumstances.  If you believe such disposition of existing stocks of  your product(s) which may
be suspended for failure to comply with this Notice should be permitted, you have the burden of
clearly demonstrating to EPA that granting such permission would be consistent with the Act.
You must also explain why an "existing stocks" provision is necessary, including a statement of
the quantity of existing stocks and your estimate of the time required for their sale, distribution,
and use. Unless you meet this burden the Agency will not consider  any request pertaining to the
continued sale, distribution, or use of your existing stocks after suspension.

       If you request a voluntary cancellation  of your product(s) as  a response to this Notice and
your product is in full compliance with all Agency requirements, you will  have, under most
circumstances, one year from the date your 90 day response to this Notice is due, to sell,
distribute, or use existing stocks.  Normally, the Agency will allow  persons other than the
registrant such as independent distributors, retailers and end users to sell, distribute or use such
existing stocks until the stocks are exhausted.  Any sale,  distribution or use of stocks of
voluntarily cancelled products containing an active ingredient for which the Agency has particular

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risk concerns will be determined on case-by-case basis.

       Requests for voluntary cancellation received after the 90 day response period required by
this Notice will not result in the Agency granting any additional time to sell, distribute,  or use
existing stocks beyond a year from the date the 90 day response was due unless you demonstrate
to the Agency that you are in full compliance with all Agency requirements, including the
requirements of this Notice.  For example,  if you decide to voluntarily cancel your registration
six months before a 3 year study is scheduled to be submitted, all progress reports and other
information necessary to establish that you have been conducting the study in an acceptable and
good faith manner must have been submitted to the Agency, before EPA will consider granting
an existing stocks provision.

SECTION V.  REGISTRANTS' OBLIGATION TO REPORT POSSIBLE
UNREASONABLE ADVERSE EFFECTS

       Registrants are reminded that FIFRA section 6 (a) (2)  states that if at any time after a
pesticide is registered a registrant has additional factual information regarding unreasonable
adverse effects on the environment by the pesticide, the registrant shall submit the information to
the Agency.   Registrants must notify the Agency of any factual information they have, from
whatever source, including but not limited to interim or preliminary results of studies, regarding
unreasonable adverse effects on man or the environment.  This requirement continues as long as
the products are registered by the Agency.

SECTION VI. INQUIRIES AND RESPONSES TO THIS NOTICE

       If you have any questions regarding the requirements and procedures established by this
Notice, call the contact person(s) listed in Attachment  1, the Data Call-In Chemical Status Sheet.

       All responses to this Notice (other than voluntary cancellation requests and generic data
exemption claims) must include a completed Data CalHn Response Form and a completed
Requirements Status and Registrant's  Response Form (Attachment 2 and Attachment 3 for
product specific data) and any other documents required by this Notice, and should be submitted
to the contact person(s) identified in Attachment 1.  If the voluntary cancellation or generic data
exemption option  is chosen, only the Data Call-In Response Form need be submitted.

       The Office of Compliance Monitoring (OCM) of the Office of Pesticides and Toxic
Substances (OPTS), EPA, will be monitoring the data being generated in response to this Notice.

                                        Sincerely yours,
                                        Louis P. True, Jr., Acting Director
                                        Special Review and
                                         Reregistration Division
Attachments
       1  -   Data Call-in Chemical Status Sheet
       2  -   Product-Specific Data Call-in Response Form
       3  -   Requirements Status and Registrant's Response Form
       4  -   EPA Grouping of End-Use Products for Meeting Acute Toxicology Data
             Requirements for Reregistration


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5 -   EPA Acceptance Criteria
6 -   List of Registrants Receiving This Notice
7 -   Cost Share and Data Compensation fr'orms, and Product Specific Data Report
      Form
                                    123

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Attachment 1. Chemical Status Sheet
                125

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DISODIUM CYANODITHIOIMIDOCARBONATE DATA CALL-IN CHEMICAL STATUS
SHEET

INTRODUCTION

       You have been sent this Product Specific Data Call-In Notice because you have product(s)
containing Disodium Cyanodithioimidocarbonate.

       This Product Specific Data Call-In Chemical Status Sheet contains an overview of data
required by this notice, and point of contact for inquiries pertaining to the reregistration of
Disodium Cyanodithioimidocarbonate. This attachment is to be used in conjunction with (1) the
Product Specific Data Call-In Notice, (2) the Product Specific Data Call-In Response Form
(Attachment 2), (3) the Requirements Status and Registrant's Form (Attachment 3), (4) EPA's
Grouping of End-Use Products for Meeting Acute Toxicology Data Requirement (Attachment 4),
(5) the EPA Acceptance Criteria (Attachment 5), (6) a list of registrants receiving this  DCI
(Attachment 6) and (7)  the Cost Share and Data Compensation Forms in replying to this
Disodium Cyanodithioimidocarbonate Product Specific Data Call-In (Attachment 7). Instructions
and guidance accompany each form.

DATA REQUIRED BY THIS NOTICE

       The additional data requirements needed to complete the database for Disodium
Cyanodithioimidocarbonate are contained in the Requirements Status and Registrant's Response,
Attachment 3.  The Agency has concluded that additional data on Disodium
Cyanodithioimidocarbonate are needed for specific products. These data are required to be
submitted to the Agency within the time frame listed.  These data are needed to fully complete
the reregistration of all eligible Disodium Cyanodithioimidocarbonate products.

INQUIRIES AND RESPONSES TO THIS NOTICE

       If you have any questions regarding the generic database of Disodium
Cyanodithioimidocarbonate, please contact Bonnie Adler at (703) 308-8523.
       If you have any questions regarding the product specific data requirements and procedures
established by this Notice, please contact Franklin Gee at (703)  308-8008.

       All responses to this Notice for the Product Specific data requirements should be
       submitted to:
             Ed Setron
             Chemical Review Manager Team 81
             Product Reregistration  Branch
             Special Review and Reregistration Branch 7508W
             Office of Pesticide Programs
             U.S. Environmental Protection Agency
             Washington, D.C.  20460

             RE: Disodium Cyanodithioimidocarbonate
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Attachment 2. Product Specific Data Call-In Response Forms
             (Form A inserts) Plus Instructions
                           127

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128

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   INSTRUCTIONS FOR COMPLETING THE DATA CALL-IN RESPONSE FORM FOR
                             PRODUCT SPECIFIC DATA

Item 1-4.     Already completed by EPA.

Item 5.       If you wish to voluntarily cancel your product, answer "yes."  If you choose this
             option, you will not have to provide the data required by the Data Call-In Notice and
             you will not have to complete any other forms.  Further sale and distribution of your
             product after the effective date of cancellation must be in accordance with the Existing
             Stocks provision of the Data Call-In Notice (Section IV-C).

Item 6.       Not applicable since this form calls in product specific data only.  However, if your
             product is identical to another product and you qualify for a data exemption, you
             must respond with "yes" to Item 7a (MUP) or 7B  (EUP) on this form, provide the
             EPA registration  numbers  of your source(s);  you would  not complete the
             "Requirements Status and Registrant's Response" form. Examples of such products
             include repackaged products and Special Local Needs (Section 24c) products which
             are identical to federally registered products.

Item 7a.      For each  manufacturing use product (MUP) for which you wish to maintain
             registration, you must agree to satisfy the data requirements by responding "yes."

Item 7b.      For each end use product (EUP) for which you wish to maintain registration, you
             must agree to satisfy the data requirements by  responding "yes.   If you are
             requesting a data waiver, answer  yes" here; in addition, on  the "Requirements
             Status and  Registrant's Response" form under Item 9, you must respond with Option
             7 (Waiver  Request) for each study for which you are requesting a waiver. See Item
             6 with regard to identical products and data exemptions.

Items 8-11.  Self-explanatory.

NOTE:       You may provide additional information that does not fit on this form in a signed
             letter that accompanies this form.  For example, you may wish to report that your
             product has already been  transferred to another company or that you have already
             voluntarily canceled this product. For these cases,  please supply all relevant details
             so that EPA can ensure that its records are correct.
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       INSTRUCTIONS FOR COMPLETING THE REQUIREMENTS STATUS AND
         REGISTRANT'S RESPONSE FORM FOR PRODUCT SPECIFIC DATA

Item 1-3      Completed by EPA.  Note the unique identifier number assigned by EPA in Item
             3.  This  number  must  be  used  in  the  transmittal  document for  any  data
             submissions in response to this Data Call-In Notice.

Item 4.       The  guideline reference  numbers  of studies required  to  support the product's
             continued registration are identified.  These guidelines, in addition to the requirements
             specified in the Notice, govern the conduct of the required studies.  Note that series
             61 and 62 in product chemistry are  now listed under 40 CFR  158.155  through
             158.180,  SubpartC.

Item 5.       The study title associated with the guideline reference number is identified.

Item 6.       The use pattern(s) of the pesticide associated with the product specific requirements
             is (are) identified.  For most product specific data requirements, all use patterns are
             covered by the data requirements.  In the case of efficacy data, the required studies
             only pertain to products which have the use sites and/or pests indicated.

Item 7.       The substance to be  tested is identified  by EPA.  For  product specific data, the
             product as formulated for sale and distribution is the test substance, except in rare
             cases.

Item 8.       The due date for submission of each study is identified.  It is normally based  on 8
             months after issuance of the Reregistration Eligibility Document unless  EPA
             determines that a longer time period is necessary.

Item 9.       Enter only one of the following response codes for each data requirement  to show
             how you intend to comply with the data requirements listed in this table. Fuller
             descriptions of each option are contained in me Data Call-In Notice.

       1.     I  will generate and submit data by the specified due date (Developing Data).  By
             indicating that I have chosen  this  option, I certify that I will comply with all the
             requirements pertainingto the conditions for submittal of this study as outlined in the
             Data Call-In Notice.  By the specified due date, I will also submit: (1) a completed
             "Certification With Respect To Data Compensation  Requirements" form (EPA
             Form  8570-29) and (2)  two  completed and  signed  copies of the Confidential
             Statement of Formula (EPA Form 8570-4).

       2.     I  have entered into an agreement with one or more registrants to develop data jointly
             (Cost Sharing).  I  am submitting a copy of this agreement.  I understand  that this
             option is  available only for acute toxicity or certain efficacy data and only if  EPA
             indicates in an attachment to this Notice that my product is similar enough to another
             product to qualify for this option.  I certify that another party in the agreement is
             committing to submit or provide  the  required data; if  the required study is not
             submitted  on time,  my product may be subject to suspension.  By the specified due
             date,  I will also submit:  (1)  a completed "Certification With Respect To Data
             Compensation Requirements" form (EPA Form 8570-29) and (2) two  completed
             and signed copies of the Confidential Statement of Formula (EPA Form 8570-4).

       3.     I  have made offers to share in the  cost to develop data (Offers to Cost  Share).  I
             understand that this option is available only for acute toxicity or certain efficacy data
             and only if EPA indicates in an attachment to this Data Call-In Notice that my product
             is similar enough to another product to  qualify for this option.  I am submitting
             evidence that I have made an offer to another registrant (who has an obligation to
             submit data) to share in the cost of that data.  I  am also submitting  a  completed


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       "Certification of Offer to  Cost Share in the Development Data" form.  I am
       including a copy of my offer and proof of the other registrant's receipt of that offer.
       I am identifying the party which is committing to submit or provide the required data;
       if the required study is not submitted on time, my product may be subject to
       suspension.  I understand that other terms under Option 3 in the Data Call-in Notice
       (Section III-C.l.) apply as well.  By the specified due date, I will also submit: (1) a
       completed "Certification With Respect To Data Compensation Requirements"
       form  (EPA Form 8570-29)  and  (2) two completed and signed copies of the
       Confidential Statement of Formula (EPA Form 8570-4).

4.      By the specified due date, I will submit an existing study that has not been submitted
       previously to the Agency by anyone (Submitting an Existing Study). I certify that
       this  study  will meet all the requirements for submittal of existing data outlined in
       Option 4 in the Data Call-in Notice (Section III-C.l.) and will meet the  attached
       acceptance criteria (for acute toxicity and product chemistry data).  I will attach the
       needed supporting information along with this response.  I also certify that I have
       determined that this study will fill the  data requirement for which I have indicated this
       choice. By the specified due date, I will also submit a completed "Certification With
       Respect To Data Compensation Requirements" form (EPA Form 8570-29) to
       show what data compensation option I have chosen. By the specified due date, I will
       also submit: (1) a completed "Certification With Respect To Data Compensation
       Requirements" form (EPA Form 8570-29) and (2) two completed and signed copies
       of the Confidential Statement of Formula (EPA Form 8570-4).

5.      By the specified due date, I will submit or cite data to upgrade a study classified by
       the Agency as partially acceptable  and upgradable  (Upgrading a Study).  I will
       submit evidence of the Agency's review indicating that the study  may be upgraded
       and what information is required to do so.  I will provide the MRID or Accession
       number of the study at the due date.  I understand that the conditions for this option
       outlined Option  o  in the Data  Call-In Notice (Section III-C.l.) apply.   By the
       specified due date, I will also submit: (1) a completed "Certification With  Respect
       To Data Compensation Requirements"  form (EPA Form 8570-29) and (2) two
       completed and signed copies of the Confidential Statement of Formula (EPA Form
       8570-4).

6.      By the specified due date, I will cite  an existing study that the Agency has classified
       as acceptable or an existing study that has been submitted  but not reviewed by the
       Agency  (Citing an Existing Study).  If I am citing  another registrant's  study, I
       understand that this option is available only for acute toxicity or certain efficacy data
       and only if the cited study was conducted on my product,  an identical product or a
       product which EPA has "grouped" with one or more other products for purposes of
       depending on the same data. I may also choose this option if I am citing  my own
       data.  In either case, I will provide the MRID or Accession number(s) for  the cited
       data  on  a  "Product Specific Data Report" form or in a similar format.   By the
       specified due date, I will also submit: (1) a completed "Certification With  Respect
       To Data Compensation Requirements"  form (EPA Form 8570-29) and (2) two
       completed and signed copies of the Confidential Statement of Formula (EPA Form
       8570-4).

7.      I request a waiver for this study because it is inappropriate for my product  (Waiver
       Request).  I am attaching a complete justification for this request, including technical
       reasons, data and references to  relevant  EPA regulations, guidelines or  policies.
       [Note: any supplemental data must be submitted in the format required by P.R. Notice
       86-5]. I understand that this is my only opportunity to state the reasons or provide
       information in support of my request.  If the Agency approves my waiver request, I
       will not be required to supply the data pursuant to Section 3(c)(2)(B) of FIFRA.  If
       the Agency denies my waiver request, I must choose a method of meeting the data


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             requirements of this Notice by the due date stated by this Notice.  In this case, I must,
             within 30 days of my receipt of the Agency's written decision, submit a revised
             "Requirements Status and Registrant's Response" Form indicating the option chosen.
             I also understand that the deadline for submission of data as specified by the original
             data call-in notice will not change.  By the specified due date, I will also submit:  (1)
             a completed "Certification With Respect To Data Compensation Requirements"
             form (EPA  Form 8570-29)  and (2)  two completed  and signed  copies of the
             Confidential Statement of Formula (EPA Form 8570-4).

Items 10-13.  Self-explanatory.

NOTE:      You may provide additional information that does not fit on  this form in a signed
             letter that accompanies this form.  For example, you may wish to report that your
             product has already been transferred to another company or that you have already
             voluntarily canceled this product.  For these cases, please supply all relevant details
             so that EPA can ensure that its records are correct.
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Attachment 3. Product Specific Requirement Status and
   Registrant's Response Forms (Form B inserts) and
                    Instructions
                        133

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134

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INSTRUCTIONS   FOR   COMPLETING   THE   "REQUIREMENTS   STATUS   AND
REGISTRANT'S RESPONSE" FORM FOR PRODUCT SPECIFIC DATA

Item 1-3.     Completed by EPA.  Note the unique identifier number assigned by EPA in item 3.
             This number must be used in the transmittal document for any data submissions in
             response to this Data Call-In Notice.

Item 4.       The guidelines  reference numbers of studies  required to support the product's
             continued registration are identified. These guidelines, in addition to the requirements
             specified in the Notice, govern the conduct of the required studies.  Note that series
             61  and 62 in product chemistry are now listed under 40 CFR  158.155 through
             158.180, Subpartc.

Item 5.       The study title associated with the guideline reference number is identified.

Item 6.       The use patters (s)  of the pesticide associated with the product specific requirements
             is (are) identified.  For most product specific data requirements, all  use patterns are
             covered by the data requirements.  In the case of efficacy data, the required studies
             only pertain to products which have the use sites and/ or pests indicated.

Item 7.       The substance to  be tested is identified  by EPA.   For product  specific data, the
             product as formulated  for sale and distribution is the test substance, except in rare
             cases.

Item 8.       The due date for submission of each study is identified.  It is normally based on 8
             months after  issuance of the  Reregistration  Eligibility  Documents  unless EPA
             determines that a longer time period is necessary.

Item 9.       Enter  Only one of the  following response codes for each data requirement to show
             how you intend  to comply with the data requirements listed  in this table.  Fuller
             descriptions of each option are contained in the Data Call-In Notice.

             1.     I will generate and submit data by the specified due  date (Developing Data).
             By  indicating that I have  chosen this option, I certify that I will comply with all the
             requirements pertaining to the conditions for submittal of this study as outlined in the
             Data Call-In Notice.

             2.     I have entered into an agreement with one or more registrants to develop data
             jointly (Cost Sharing).  I am submitting a copy of this agreement.  I understand that
             this option is available on for acute toxicity or certain efficacy  data and only if EPA
             indicates in an attachment to this notice that my product is similar. Enough to another
             product to qualify for this option. I certify that another party in the agreement is
             committing  to submit or provide the required data;  if the required study is not
             submitted on time, my product my be subject to suspension.

             3.     I have made offers to share in the cost to develop data (Offers to Cost Share).
             I understand that this option is available only for acute toxicity or certain efficacy data
             and only if EPA indicates in an attachment to this Data Call-In Notice that my product
             is similar enough to another product to  qualify for this option.   I am submitting
             evidence that I have made an  offer to another  registrant (who has an obligation to
             submit data) to share in the cost of that data.  I am also submitting a completed
             Certification of offer to Cost Share in the Development Data" form. I am including
             a copy of my offer and proof of the other registrant's receipt of that offer.  I am
             identifying the party which is committing to submit or provide the require data; if the
             required study is not submitted on time, my product may be subject to suspension.
             I understand that other terms under Option 3 in the Data Call-in Notice (Section III-
             C.l.) apply as well.
                                           135

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              4.      By the specified due date, I will submit an existing study that has not been
              submitted previously to the Agency by anyone  (submitting an Existing Study).   I
              certify that this study will meet all the requirements for submittal of existing data
              outlined in option 4 in the Data Call-in Notice (Section III-C.l.) and will meet the
              attached acceptance criteria  (for acute toxicity and product chemistry  data).  I will
              attach the needed supporting information along with this response. I also certify that
              I have  determined that this  study  will fill the data requirement for which I have
              indicated this choice.

              5.      By the specified due date,  I will submit or cite data to upgrade a study
              classified by the Agency as partially acceptable and upgrade (upgrading a study).  I
              will  submit evidence  of the Agency's review  indicating  that the study may be
              upgraded and what information is  required to do so.   I will provide the  MRID or
              Accession number  of the study at the due date.  I understand that the conditions for
              this Option outlined Option 5 in the Data Call-in Notice (Section III-C.l.) apply.

              6.      By the specified due date, I will cite an existing study that the Agency has
              classified as acceptable or an existing study that has been submitted but  not reviewed
              by the Agency (Citing an Existing Study). If I am citing another registrant's study,
              I understand that this option is available only for acute toxicity or certain efficacy data
              and only if the cited study was conducted on my product, an identical product or  a
              product which EPA has "grouped"  with one or more other products for purposes of
              depending on the same data. I may also choose this option if I am citing my own
              data. In either case, I will provide the MRID or Accession number (s) number (s) for
              the cited data on a "Product Specific Data Report" form or in a similar format. If I
              cite another registratrant's data, I will submit a completed "Certification With Respect
              To Data Compensation Requirements" form.

              7.      I request a  waiver  for this study because it is inappropriate for my product
              (Waiver Request). I am attaching a complete justification for this request, including
              technical reasons,  data and references to relevant EPA  regulations, guidelines or
              policies. [Note: any supplemental data must be submitted in the format required by
              P.R.  Notice 86-5].  I understand that this is my only opportunity to state the reasons
              or provide information in support of my request.  If the Agency approves my waiver
              request, I will not be require to supply the data  pursuant to Section 3(c)  (2) (B) of
              FIFRA. If the Agency denies my waiver request, I must choose a method of meeting
              the data requirements  of this Notice by the due  date stated by this Notice.  In this
              case, I must, within 30 days of my  receipt of the Agency's written decision, submit
              a  revised  "Requirements Status chosen.  I also understand that the  deadline for
              submission of data  as specified by the original data cal-in notice will not change.

Items 10-13.   Self-explanatory.

       NOTE:You may provide additional information that does not fit on this form in a signed letter
that accompanies this form.  For example, you may wish to report that your product has already been
transferred to another company or that you have already voluntarily cancelled this product.  For
these cases, please supply all relevant details so that EPA can ensure that its records are correct.
                                            136

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Attachment 4. EPA Batching of End-Use Products for
   Meeting Data Requirements for Reregistration
                       137

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138

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EPA'S BATCHING OF DISODIUM CYANODITHIOIMIDOCARBONATE (DCDIC)
PRODUCTS FOR MEETING ACUTE TOXICITY DATA REQUIREMENTS FOR
REREGISTRATION

       In an effort to reduce the time, resources and number of animals needed to fulfill the acute
toxicity data requirements for reregistration of products containing the active ingredient disodium
cyanodithioimidocarbonate (DCDIC), the Agency has batched products which can be considered
similar  for purposes of acute toxicity.  Factors considered in the sorting process include each
product's active and inert ingredients (identity, percent composition and biological activity), type of
formulation (e.g., emulsifiable concentrate, aerosol, wettable powder, granular, etc.), and labeling
(e.g., signal word, use classification, precautionary labeling, etc.).  Note that the Agency is  not
describing batched products as "substantially similar" since some products within a batch may  not
be considered chemically similar or have identical use patterns.

       Batching has been accomplished using the readily available information described above, and
frequently  acute  toxicity  data on  individual  products has  been  found  to  be  incomplete.
Notwithstanding the batching process, the Agency reserves the right to require, at any time, acute
toxicity data for an individual product should the need arise.

       Registrants of products within a batch may choose to cooperatively generate, submit or cite
a single battery of six acute toxicological studies to represent all the products within that batch. It
is the registrants' option to participate in the process with all other registrants, only some of the other
registrants, or  only their own products within a batch, or to generate all  the required  acute
toxicological studies for each of their  own products.  If a registrant chooses to generate the data for
a batch,  he/she must use one of the products within the batch as the test  material.  If a registrant
chooses to rely upon previously submitted acute toxicity data, he/she may do so provided that  the
data base is  complete and valid by today's standards  (see  acceptance criteria  attached),  the
formulation tested is considered by EPA to be similar for acute toxicity, and the  formulation has  not
been significantly altered since submission and acceptance of the acute toxicity data. Regardless of
whether new data is generated or existing data is referenced, registrants must clearly identify the test
material by EPA Registration Number.

       In deciding  how to meet the product specific data requirements, registrants must follow  the
directions given in the Data Call-In Notice and its attachments appended to the RED. The DCI
Notice contains two response forms which are  to be completed and submitted to the Agency within
90 days of receipt.  The first form, "Data Call-In Response," asks whether the  registrant will meet
the data requirements for each product.  The second form,  "Requirements Status and Registrant's
Response," lists the product specific data required for each product, including the standard six acute
toxicity tests.   A registrant who wishes to participate in a batch must decide whether  he/she will
provide the data or depend on someone else to do so. If a registrant supplies the data to support a
batch of products, he/she must select one of the following options: Developing Data  (Option  1),
Submitting an  Existing Study (Option 4), Upgrading an Existing Study  (Option  5) or Citing  an
Existing Study  (Option 6).  If a registrant depends on another's data, he/she must choose among:
Cost Sharing  (Option 2),  Offers to Cost Share (Option 3) or Citing an Existing Study  (Option 6).
If a registrant  does not want to participate in a batch,  the choices are  Options 1,   4,  5  or 6.
However, a registrant should know that choosing not to participate in a batch does not preclude other
registrants in the batch from citing his/her studies and offering to cost share (Option 3) those studies.

The tables below show the products which were batched together in batches numbered one through
four.
                                            139

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BATCH
NO.
1
EPA REG,
NO.
1448-115
1760-27
7053-18
9403-10
9619-11
10807-136
10827-71
11743-6
12480-2
14804-4
20375-8
22558-5
31964-7
% of Disodium Cyanodithioimidocarbonate
& Other Active Ingredients
3.68% - Disodium Cyanodithioimidocarbonate
5.07% - Potassium N-methyldithiocarbamate
3.68% - Disodium Cyanodithioimidocarbonate
5.07% - Potassium N-methyldithiocarbamate
3.68% - Disodium Cyanodithioimidocarbonate
5.07% - Potassium N-methyldithiocarbamate
3.68% - Disodium Cyanodithioimidocarbonate
5.07% - Potassium N-methyldithiocarbamate
3.68% - Disodium Cyanodithioimidocarbonate
5.07% - Potassium N-methyldithiocarbamate
3.68% - Disodium Cyanodithioimidocarbonate
5.07% - Potassium N-methyldithiocarbamate
3.68% - Disodium Cyanodithioimidocarbonate
5.07% - Potassium N-methyldithiocarbamate
3.68% - Disodium Cyanodithioimidocarbonate
5.07% - Potassium N-methyldithiocarbamate
3.68% - Disodium Cyanodithioimidocarbonate
5.07% - Potassium N-methyldithiocarbamate
3.68% - Disodium Cyanodithioimidocarbonate
5.07% - Potassium N-methyldithiocarbamate
3.68% - Disodium Cyanodithioimidocarbonate
5.07% - Potassium N-methyldithiocarbamate
3.68% - Disodium Cyanodithioimidocarbonate
5.07% - Potassium N-methyldithiocarbamate
3.68% - Disodium Cyanodithioimidocarbonate
5.07% - Potassium N-methyldithiocarbamate
Formulation Type
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
140

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BATC
HNO.
1
(Cont.)
2

EPA REG.
NO.
32852-11
34859-2
36532-1
40951-5
45388-2
45591-5
54310-2
55160-3
64864-11
1685-91
10088-70
12479-3
17866-5
30942-4
39529-2
40840-2
43553-6
% of Disodium Cyanodithioimidocarbonate
& Other Active Ingredients
3.68% - Disodium Cyanodithioimidocarbonate
5.07% - Potassium N-methyldithiocarbamate
3.68% - Disodium Cyanodithioimidocarbonate
5.07% - Potassium N-methyldithiocarbamate
3.68% - Disodium Cyanodithioimidocarbonate
5.07% - Potassium N-methyldithiocarbamate
4.20% - Disodium Cyanodithioimidocarbonate
5.80% - Potassium N-methyldithiocarbamate
3.68% - Disodium Cyanodithioimidocarbonate
5.07% - Potassium N-methyldithiocarbamate
3.68% - Disodium Cyanodithioimidocarbonate
5.07% - Potassium N-methyldithiocarbamate
3.68% - Disodium Cyanodithioimidocarbonate
5.07% - Potassium N-methyldithiocarbamate
3.68% - Disodium Cyanodithioimidocarbonate
5.07% - Potassium N-methyldithiocarbamate
3.68% - Disodium Cyanodithioimidocarbonate
5.07% - Potassium N-methyldithiocarbamate
4.90% - Disodium Cyanodithioimidocarbonate
6.76% - Potassium N-methyldithiocarbamate
4.90% - Disodium Cyanodithioimidocarbonate
6.76% - Potassium N-methyldithiocarbamate
4.90% - Disodium Cyanodithioimidocarbonate
6.76% - Potassium N-methyldithiocarbamate
4.90% - Disodium Cyanodithioimidocarbonate
6.76% - Potassium N-methyldithiocarbamate
4.90% - Disodium Cyanodithioimidocarbonate
6.76% - Potassium N-methyldithiocarbamate
3.80% - Disodium Cyanodithioimidocarbonate
5.20% - Potassium N-methyldithiocarbamate
4.90% - Disodium Cyanodithioimidocarbonate
6.76% - Potassium N-methyldithiocarbamate
4.90% - Disodium Cyanodithioimidocarbonate
6.76% - Potassium N-methyldithiocarbamate
Formulation Type
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
141

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BATCH
NO.
2
(Cont.)
3
EPA REG.
NO.
56151-1
56244-1
57333-1
1448-180
7053-17
7547-20
7547-21
8540-20
11712-30
20375-6
44392-4
47158-4
47251-5
49271-3
51661-9
56567-3
59907-2
% of Disodium Cyanodithioimidocarbonate
& Other Active Ingredients
4.90% - Disodium Cyanodithioimidocarbonate
6.76% - Potassium N-methyldithiocarbamate
4.90% - Disodium Cyanodithioimidocarbonate
6.76% - Potassium N-methyldithiocarbamate
4.90% - Disodium Cyanodithioimidocarbonate
6.76% - Potassium N-methyldithiocarbamate
7.35% - Disodium Cyanodithioimidocarbonate
10.15% - Potassium N-methyldithiocarbamate
7.35% - Disodium Cyanodithioimidocarbonate
10.15% - Potassium N-methyldithiocarbamate
7.35% - Disodium Cyanodithioimidocarbonate
10.15% - Potassium N-methyldithiocarbamate
7.35% - Disodium Cyanodithioimidocarbonate
10.15% - Potassium N-methyldithiocarbamate
7.35% - Disodium Cyanodithioimidocarbonate
10.15% - Potassium N-methyldithiocarbamate
7.35% - Disodium Cyanodithioimidocarbonate
10.15% - Potassium N-methyldithiocarbamate
7.35% - Disodium Cyanodithioimidocarbonate
10.15% - Potassium N-methyldithiocarbamate
7.35% - Disodium Cyanodithioimidocarbonate
10.15% - Potassium N-methyldithiocarbamate
7.35% - Disodium Cyanodithioimidocarbonate
10.15% - Potassium N-methyldithiocarbamate
7.35% - Disodium Cyanodithioimidocarbonate
10.15% - Potassium N-methyldithiocarbamate
7.35% - Disodium Cyanodithioimidocarbonate
10.15% - Potassium N-methyldithiocarbamate
7.35% - Disodium Cyanodithioimidocarbonate
10.15% - Potassium N-methyldithiocarbamate
7.35% - Disodium Cyanodithioimidocarbonate
10.15% - Potassium N-methyldithiocarbamate
7.35% - Disodium Cyanodithioimidocarbonate
10.15% - Potassium N-methyldithiocarbamate
Formulation Type
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
142

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BATCH
NO.
4
EPA REG.
NO.
1448-53
1448-54
1448-128
40308-4
46773-5
% of Disodium Cyanodithioimidocarbonate
& Other Active Ingredients
14.70% - Disodium Cyanodithioimidocarbonate
20.30% - Potassium N-methyldithiocarbamate
14.70% - Disodium Cyanodithioimidocarbonate
20.30% - Potassium N-methyldithiocarbamate
14.70% - Disodium Cyanodithioimidocarbonate
20.30% - Potassium N-methyldithiocarbamate
14.70% - Disodium Cyanodithioimidocarbonate
20.30% - Potassium N-methyldithiocarbamate
14.70% - Disodium Cyanodithioimidocarbonate
20.30% - Potassium N-methyldithiocarbamate
Formulation Type
Liquid
Liquid
Liquid
Liquid
Liquid
The table below shows the four remaining products which were not batched.  These products were
not considered similar  for  purposes of acute toxicity.   The  registrants of these products are
responsible for meeting the acute toxicity data requirements specified in the data matrix.
EPA REG.
NO.
402-125
1448-75
1448-93
46412-2
%of
1.84%
2.53%
32.00%
14.50%
18.00%
Disodium Cyanodithioimidocarbonate
& Other Active Ingredients
- Disodium Cyanodithioimidocarbonate
- Potassium N-methyldithiocarbamate
- Disodium Cyanodithioimidocarbonate
- Disodium Cyanodithioimidocarbonate
- Sodium N-methyldithiocarbamate
9.79% - Disodium Cyanodithioimidocarbonate
13.51% - Potassium N-methyldithiocarbamate
Formulation Type
Liquid
Liquid
Liquid
Liquid
                                            143

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144

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Attachment 5. EPA Acceptance Criteria
                 145

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146

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                                    SUBDIVISION D
Guideline           Study Title

Series 61            Product Identity and Composition
Series 62            Analysis and Certification of Product Ingredients
Series 63            Physical and Chemical Characteristics
                                           147

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                                    61 Product Identity and Composition


ACCEPTANCE CRITERIA


Does your study meet the following acceptance criteria?

1.	    Name of technical material tested (include product name and trade name, if appropriate).

2.	    Name, nominal concentration, and certified limits (upper and lower) for each active ingredient and each
          intentionally-added inert ingredient.

3.	    Name and upper certified limit for each impurity or each group of impurities present at _>_ 0.1% by weight and
          for certain lexicologically significant impurities (e.g., dioxins, nitrosamines)  present "af < 0.1%.

4.	    Purpose of each active ingredient and each intentionally-added inert.

5.	    Chemical name from Chemical Abstracts index  of Nomenclature and Chemical Abstracts Service (CAS)
          Registry  Number for each active ingredient and, if available, for each intentionally-added inert.

6.	    Molecular, structural, and empirical formulas, molecular weight or weight range, and any company assigned
          experimental or internal code numbers for each active ingredient.

7.	    Description of each beginning material in the manufacturing process.
          	  EPA Registration Number if registered;
                 for other beginning materials, the following:
          	  Name and address of manufacturer or supplier.
          	  Brand name, trade name or commercial designation.
          	  Technical specifications or data sheets by which manufacturer or supplier describes composition,
                 properties or toxicity.

8.	Description of manufacturing process.
          	  Statement of whether batch or continuous process.
          	  Relative amounts of beginning materials and order in which they are added.
          	  Description of equipment.
          	  Description of physical conditions (temperature, pressure, humidity)  controlled in each step and the
                 parameters that are maintained.
          	  Statement of whether process involves intended chemical reactions.
          	  Flow chart with chemical equations for each intended chemical reaction.
          	  Duration of each step of process.
          	  Description of purification procedures.
          	  Description of measures taken to assure quality of final product.

9.	    Discussion of formation of impurities based on established chemical theory addressing (1) each impurity which
          may be present at _>_ 0.1% or was found at _>_ 0.1% by product analyses and (2) certain lexicologically
          significant impurities~(see #3).
                                                     148

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                              62 Analysis and Certification of Product Ingredients


                                          ACCEPTANCE CRITERIA

The following criteria apply to the technical grade of the active ingredient being reregistered. Use a table to present the
information in items 6, Y, and 8.

Does your study meet the following acceptance criteria?

 1.	  Five or more representative samples (batches in case of batch process) analyzed for each active ingredient and
         all impurities present at > 0.1%.
 2.	  Degree of accountability!)!" closure _>_ ca 98%.
 3.	  Analyses conducted for certain trace toxiclmpurities at lower than 0.1% (examples, nitrosamines in the case of
         products  containing dinitroanilines or containing secondary or  tertiary  amines/alkanolamines  plus nitrites;
         polyhalogenated dibenzodioxins and dibenzofurans). [Note that in the case of nitrosamines both fresh and stored
         samples must be analyzed.].
 4.	  Complete and detailed description of each step in analytical method used to analyze above samples.
 5.	  Statement of precision and accuracy of analytical method used to analyze above samples.
 6.	  Identities and quantities (including mean and standard deviation)  provided for each analyzed ingredient.
 7.	  Upper and lower certified limits proposed for each active ingredient and intentionally added inert along with
         explanation of how the limits were determined.
 8.	  Upper certified limit proposed for each impurity present at > 0.1% and for certain lexicologically significant
         impurities at < 0.1% along with explanation of how limit determined.
 9.	  Analytical methods to verify certified limits of each active ingredient and impurities (latter not required if exempt
         from requirement of tolerance or if generally recognized as safe by FDA) are fully described.
10.	Analytical methods (as discussed in #9) to verify certified limits validated as to their precision and accuracy.
                                                      149

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                                   63 Physical and Chemical Characteristics

                                          ACCEPTANCE CRITERIA


The following criteria apply to the technical grade of the active ingredient being reregistered.

Does your study meet the following acceptance criteria?

63-2 Color
   	  Verbal description of coloration (or lack of it)
   	  Any intentional coloration also reported in terms of Munsell color system

63-3 Physical State
   	  Verbal description of physical state provided using terms such as "solid, granular, volatile liquid"
   	  Based on visual inspection at about 20-25°  C

63-4 Odor
   	  Verbal description of  odor (or lack of  it) using  terms such as  "garlic-like,  characteristic  of aromatic
          compounds"
   	  Observed at room temperature

63-5 Melting Point
   	  Reported in ° C
   	  Any observed decomposition reported

63-6 Boiling Point
   	  Reported in ° C
   	  Pressure under which B.P. measured reported
   	  Any observed decomposition reported

63-7 Density, Bulk Density, Specific Gravity
   	  Measured at about 20-25° C
   	  Density of technical grade active ingredient reported in g/ml or the specific gravity of liquids reported with
          reference  to water at  20°  C. [Note: Bulk density of registered products may be reported  in lbs/ft3 or
          Ibs/gallon.]

63-8 Solubility
   	  Determined  in  distilled water and representative polar and non-polar solvents, including those  used in
          formulations and analytical methods for the pesticide
   	  Measured at about 20-25° C
   	  Reported in g/100 ml (other units like ppm acceptable if sparingly soluble)

63-9 Vapor Pressure
   	  Measured at 25° C (or calculated by extrapolation from measurements made at higher temperature if pressure
          too low to  measure at 25° C)
   	  Experimental procedure described
   	  Reported in mm Hg (torr) or other conventional units

63-10 Dissociation Constant
   	  Experimental method described
   	  Temperature of measurement specified (preferably about
          20-25 °C)

63-11 Octanol/water Partition Coefficient
          Measured at about 20-25° C
   	  Experimentally determined and description of procedure provided (preferred method-45 Fed. Register 77350)
   	  Data supporting reported value provided

63-12 pH
   	  Measured at about 20-25° C
   	  Measured following dilution or dispersion in distilled water

63-13 Stability
   	  Sensitivity to metal ions and metal determined
   	  Stability at normal and elevated temperatures
   	  Sensitivity to sunlight determined
                                                     150

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                                             SUBDIVISION F
Guideline         Study Tide

 81-1           Acute Oral Toxicity in the Rat
 81-2           Acute Dermal Toxicity in the Rat, Rabbit or Guinea Pig
 81-3           Acute Inhalation Toxicity in the Rat
 81-4           Primary Eye Irritation in the Rabbit
 81-5           Primary Dermal Irritation Study
 81-6           Dermal Sensitization in the Guinea Pig
                                                   151

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                                      81-1  Acute Oral Toxicity in the Rat


                                         ACCEPTANCE CRITERIA


Does your study meet the following acceptance criteria?

 1.	Identify material tested (technical, end-use product, etc).
 2.	At least 5 young adult rats/sex/group.
 3.r	Dosing, single oral may be administered over 24 hrs.
 4.*^	Vehicle control if other than water.
 5.	Doses tested, sufficient to determine a toxicity category or a limit dose (5000 mg/kg).
 6.	Individual observations at least once a day.
 7.	Observation period to last at least 14 days, or  until all test animals appear normal whichever is longer.
 8.	Individual daily observations.
 9.	Individual body weights.
10.	Gross necropsy on all animals.
                       Criteria marked with an * are supplemental and may not be required for every study.

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                         81-2  Acute Dermal toxicity in the Rat, Rabbit or Guinea Pig


                                          ACCEPTANCE CRITERIA


Does your study meet the following acceptance criteria?

 1.	Identify material tested (technical, end-use product, etc).
 2.	At least 5 animals/sex/group.
 3.*	Rats 200-300 gm, rabbits 2.0-3.0 kg or guinea pigs 350-450 gm.
 4.	Dosing, single dermal.
 5.	Dosing duration at least 24 hours.
 6.^	Vehicle control, only if toxicity of vehicle is unknown.
 7.~	Doses tested, sufficient to determine a toxicity category or a limit dose (2000 mg/kg).
 8.	Application site clipped or shaved at least 24 hours oefore dosing.
 9.	Application site at least 10% of body surface area.
10.	Application site covered with a porous nonirritating cover to retain test material and to prevent
      ingestion.
11.	Individual observations at least once a day.
12.	Observation period to last at least 14 days.
13.	Individual body weights.
14.	Gross necropsy on all animals.
                       Criteria marked with an * are supplemental and may not be required for every study.

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                                   81-3 Acute Inhalation Toxicity in the Rat


                                          ACCEPTANCE CRITERIA


Does your study meet the following acceptance criteria?

 1.	Identify material tested (technical, end-use product, etc).
 2.	Product is a gas, a solid which may produce a significant vapor hazard based on toxicity and expected use  or
        contains particles of inhalable size for man (aerodynamic diameter 15 pm or less).
 3.	At least 5 young adult rats/sex/group.
 4.	Dosing, at least 4 hours by inhalation.
 5.	Chamber air flow dynamic, at least 10 air changes/hour, at least 19% oxygen content.
 6.	Chamber temperature, 22° C (+_2°), relative humidity 40-60%.
 7.	Monitor rate of air flow.
 8.	Monitor actual concentrations of test material in breathing zone.
 9.	Monitor aerodynamic particle size for aerosols.
10.	Doses tested, sufficient to determine a toxicity category or a limit dose (5  mg/L actual concentration of respirable
        substance).
11.	Individual observations at least once a day.
12.	Observation period to last at least 14 days.
13.	Individual body weights.
14.	Gross necropsy on all animals.
                                                     154

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                                   81-4 Primary Eye Irritation in the Rabbit


                                          ACCEPTANCE CRITERIA


Does your study meet the following acceptance criteria?

 1.	Identify material tested (technical, end-use product, etc).
 2.	Study not required if material is corrosive, causes severe
        dermal irritation or has a pH of < 2 or > 11.5.
 3.	6 adult rabbits.
 4.	Dosing, instillation into the conjunctival sac of one eye
        per animal.
 5.	Dose, 0.1 ml if a liquid;  0.1 ml or not more than 100 mg if a solid,  paste or particulate substance.
 6.	Solid or granular test material ground to a fine dust.
 7.	Eyes not washed for at least 24 hours.
 8.	Eyes examined and graded for irritation before dosing and
        at 1, 24, 48 and 72 hr, then daily until eyes are normal
        or 21 days (whichever is shorter).
 9.^	Individual daily observations.
                       Criteria marked with an * are supplemental and may not be required for every study.

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                                    81-5  Primary Dermal Irritation Study

                                          ACCEPTANCE CRITERIA


Does your study meet the following acceptance criteria?

 1.	Identify material tested (technical, end-use product, etc).
 2.	Study not required if material is corrosive or has a pH of < 2 or > 11.5.
 3.	6 adult animals.
 4.	Dosing, single dermal.
 5.	Dosing duration 4 hours.
 6.	Application site shaved or clipped at least 24 hours prior to dosing.
 7.	Application site approximately 6 cm2.
 8.	Application site covered with a gauze patch held in place with nonirritating tape.
 9.	Material removed, washed with water, without trauma to application site.
10.	Application site examined and graded for irritation at 1, 24, 48 and 72 hr, then daily until normal or 14 days
        (whichever is shorter).
11 .^	Individual daily observations.
                       Criteria marked with an * are supplemental and may not be required for every study.

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                                 81-6  Dermal Sensitization in the Guinea Pig

                                          ACCEPTANCE CRITERIA


Does your study meet the following acceptance criteria?

1.	Identify material tested (technical,  end-use product, etc).
2.	Study not required if material is corrosive or has a
      pHof <2or  >11.5.
3.	One offhe following methods is utilized:
      	Freund's complete adjuvant test
      	Guinea pig maximization test
      	Split adjuvant technique
      	Buehler test
      	Open epicutaneous test
      	Mauer optimization test
      	Footpad technique in guinea pig.
4.	Complete description of test.
5.^	Reference for  test.
6.~	Test followed  essentially as described in reference document.
7.	Positive control included (may provide historical data conducted within the last 6 months).
                       Criteria marked with an * are supplemental and may not be required for every study.

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158

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Attachment 6. List of All Registrants Sent This Data Call-In (insert) Notice
                                  159

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160

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Attachment 7. Cost Share Data Compensation Forms, Confidential
         Statement of Formula Form and Instructions
                           161

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162

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164

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Instructions for Completing the Confidential Statement of Formula
The Confidential Statement of Formula (CSF) Form 8570-4 must be  used. Two legible, signed copies of the form are
required.  Following are basic instructions:
     a. All the blocks on the form must be filled in and answered completely.
     b.       If any block is not applicable, mark it N/A.
     c.       The CSF must be signed, dated and the telephone number of the responsible party must be provided.
     d.       All applicable information which is on the product specific data submission must also be reported on the
              CSF.
     e.       All weights reported under item 7 must be in pounds per gallon for liquids and pounds per cubic feet for
              solids.
     f.       Flashpoint must be in degrees Fahrenheit and flame extension in inches.
     g.       For all active ingredients, the EPA Registration Numbers for the currently registered source products
              must  be reported under column 12.
     h.       The Chemical Abstracts Service (CAS) Numbers for all actives and inerts and all common names for the
              trade  names must be  reported.
     i.       For the active ingredients, the percent purity of the source products must be reported under column 10
              and must be exactly the same as on the source product's laoel.
     j.       All the weights in columns 13.a. and 13.b. must be  in pounds, kilograms, or grams. In no case will
              volumes be accepted. Do not mix English and metric system units (i.e., pounds and kilograms).
     k.       All the items under column 13.b. must total 100 percent.
     1.       All items under columns 14.a.  and 14.b. for the active ingredients must represent pure active  form.
     m.      The upper and lower certified limits for ail active and inert ingredients must follow the 40 CFR 158.175
              instructions. An explanation must be provided if the proposed limits are different than standard certified
              limits.
     n.       When new CSFs are  submitted and approved, all previously submitted CSFs become obsolete for that
              specific formulation.
                                                   165

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166

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    r/EPA
United States  Environmental  Protection  Agency
            Washington,  DC  20460
   CERTIFICATION OF  OFFER  TO  COST
SHARE  IN THE DEVELOPMENT OF  DATA
Form Approved

OMB No.  2070-0106
         2070-0057

Approval  Expires 3-31-96
 Public reporting burden for this collection of information is estimated to average 15 minutes per response, including
 time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and
 completing and reviewing the collection of information. Send comments regarding the burden estimate or any other
 aspect of this collection of information, including suggestions for reducing this burden, to Chief, Information Policy
 Branch, PM-223, U.S. Environmental Protection Agency, 401 M St., S.W., Washington, DC 20460; and to the Office
 of Management and Budget, Paperwork Reduction Project (2070-0106), Washington, DC 20503.

 Please fill in blanks below.
Company Name
Product Name
Company Number
EPA Reg. No.
 I Certify that:

 My company is willing to develop and submit the data required by EPA under the authority of the Federal
 Insecticide, Fungicide and Rodenticide Act (FIFRA), if necessary. However,  my company would prefer to
 enter into an agreement with one or more registrants to develop jointly or share in the cost of developing
 data.

 My firm has offered in writing to enter into such an agreement.  That offer was irrevocable and included an
 offer  to be bound  by arbitration decision under section 3(c)(2)(B)(iii) of FIFRA if final agreement on all
 terms could not be reached otherwise.  This offer was made to  the following firm(s) on the following
 date(s):
  Name of Firm(s)
                                                                            Date of Offer
Certification:
I certify that I am duly authorized to represent the company named above, and that the statements that I have made on
this form and all attachments therein are true, accurate, and complete. I acknowledge that any knowingly false or
misleading statement may be punishable by fine or imprisonment or both under applicable law.
Signature
Name and
of Company's Authorized Representative
Date
Title (Please Type or Print)
 EPA Form 8570-32 (5/91)    Replaces EPA Form 8580, which is obsolete
                                                 167

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168

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     &EPA
United  States Environmental
             Washington, DC
   CERTIFICATION  WITH
 DATA  COMPENSATION
Protection
20460
                                                                    Agency
RESPECT TO
REQUIREMENTS
OUf M*. 3070-0107
         2070-0057
Approval  Expire* 3-31-96
  Public reporting burden for this collection of information is estimated to average 15 minutes per response, including
  time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and
  completing and reviewing the collection of information.  Send comments regarding the burden estimate or any other
  aspect of this collection of information, including suggestions for reducing this burden, to Chief, Information Policy
  Branch, PM-223, U.S. Environmental Protection Agency, 401 M St., S.W., Washington, DC 20460; and to the Office
  of Management and Budget. Paperwork Reduction Project (2070-0106), Washington. DC 20503.

  Please fill In blanks below.
Company Nam*
Product N«M
Company Numbar
SPA *•?. HO.
 I Certify that:

1.  For each study cited in support of registration or ^registration under the Federal Insecticide, Fungicide and
    Rodenticide Act (FIFRA) that is an exclusive use study, I am the original data submitter, or I have obtained the
    written permission of the original data submitter to cite that study.

2.  That for each study cited in support of registration or ^registration under FIFRA that is NOT an exclusive use
    study, I am the original data submitter, or I have obtained the written permission of the original data submitter, or I
    have notified in writing the company(ies) that submitted data I have cited and have offered to: (a) Pay
    compensation for those data in accordance with sections 3(C)(1)(D) and 3(c)(2)(D) of FIFRA; and (b) Commence
    negotiation to determine which data are subject to the compensation requirement of FIFRA and the amount of
    compensation due. if any. The companies I have notified are: (check one)
    [ ]  The companies who have submitted the studies listed on the back of this form or attached
        sheets, or indicated on the attached -Requirements Status and Registrants' Response Form.'

3.  That I have previously complied wfth section 3(c)(i )(D) of FIFRA for the studies I have cited in support of
    registration or reregistratton under FIFRA.
Signature
Date
Name and Till* (Pl«aa« Typ* or Print)
GENERAL OFFER TO PAY: I hereby offer and agree to pay compensation to other persons, with regard to me
registration or reregistratton of my products, to the extent required by FIFRA sections 3(C)(1)(D) and 3(c)(2)(D).
Signature
Date
Name and Title 
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170

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APPENDIX H. FACT SHEET
          171

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               United States
               Environmental Protection
               Agency	
                    Prevention, Pesticides
                    And Toxic Substances
                    (7508W)	
EPA-738-F-94-017
September 1994
                R.E.D.  FACTS
     Pesticide
Reregistration
   Use Profile
Disodium


cyanodithioimido-


carbonate  (DCDIC)
    All pesticides sold or distributed in the United States must be registered
by EPA, based on scientific studies showing that they can be used without
posing unreasonable risks to people or the environment. Because of advances
in scientific knowledge, the law requires that pesticides which were first
registered years ago be reregistered to ensure that they meet today's more
stringent standards.
    In evaluating pesticides for reregi strati on, EPA obtains and reviews a
complete set of studies from pesticide producers, describing the human health
and environmental effects of each pesticide. The Agency imposes any
regulatory controls that are needed to effectively manage each pesticide's
risks. EPA then reregisters pesticides that can be used without posing
unreasonable risks to human health or the environment.
    When a pesticide is eligible for reregi strati on, EPA announces this and
explains why in a Reregi strati on Eligibility Decision (RED) document. This
fact sheet summarizes the information in the RED document for reregi strati on
case 3065, disodium cyanodithioimidocarbonate or DCDIC.

    Disodium cyanodithioimidocarbonate or DCDIC is a microbicide/
microbistat used in water treatment systems. Specifically, it is used as an
industrial biocide and slimicide to control slime-forming bacteria, algae and
fungi in food processing water systems (cane and beet sugar mills), pulp and
paper mill water systems, other commercial/industrial  water cooling systems,
and secondary oil recovery injection water. DCDIC is formulated as a soluble
concentrate/liquid, and is applied through use of a measuring container,
metering pump or drip-feed device.
    Current use practice  limitations prohibit discharge of effluent containing
DCDIC into sewage systems without notifying the sewage plant authority,
and into lakes, streams, ponds, estuaries, oceans or public waters except in
accordance with an NPDES permit.

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    Regulatory
        History
Human Health
  Assessment
     DCDIC was registered in the U.S. as early as 1957 for use as an
industrial bactericide and slimicide. EPA issued a reregi strati on Phase 4 Data
Call-In (DCI) in September 1992, requiring product chemistry, toxicology,
ecological effects and environmental fate data.  Currently, 57 pesticide
products are registered which contain the active ingredient DCDIC.

Toxicity
     DCDIC generally is of moderate acute toxicity but causes eye irritation
and has been placed in Toxicity Category I (indicating the greatest degree of
acute toxicity) for this effect.  DCDIC is in Toxicity Category II for acute oral
and primary dermal effects, and Toxicity Category III for acute dermal and
inhalation effects.  (Toxicity Category I indicates the greatest degree of acute
toxicity and Category IV the least.)
     In a subchronic toxicity study using rats,  dermal irritation was observed
at all doses but systemic effects were noted only at the highest dose levels.
No gross internal organ effects were observed at any dose.
     In two developmental toxicity studies using rabbits and rats, DCDIC
caused both maternal and fetal effects at and above mid-dose.  No definitive
determination could be made as to whether the  fetal effects observed were
caused by DCDIC directly or occurred indirectly as a result of maternal
toxicity.
     DCDIC was not mutagenic in two out of  three required studies.
Although EPA does not believe that there is a genetic risk, the Agency is
requiring that the third study be repeated as confirmatory information.
Dietary Exposure
     Food additive tolerances (maximum limits for residues in processed
foods) have been established by the Food and Drug Administration (FDA) for
the sugar beet and sugar cane mill uses of DCDIC (please see  21 CFR
173.320).  EPA defers to FDA regarding this dietary exposure to DCDIC.
Additional food additive tolerances have been set for residues  of DCDIC in
food grade paper, paperboard (21 CFR 176.300) and adhesives (21 CFR
175.105).  However, these uses are neither active nor supported for
reregi strati on.
Occupational and Residential  Exposure
     Pesticide handlers-mixers, loaders and applicators—may be exposed to
DCDIC when adding it to the metering pumps and measuring  containers of
food processing or industrial water systems.
     EPA's exposure assessment, which considered combined dermal and
inhalation exposure, indicates that the highest risk appears to result from the
open pour application of this pesticide to cooling tower water. The margin of
exposure (MOE) for this use pattern is only 38, significantly less than the
100-fold margin believed to be acceptable. However, due to the worst-case
assumptions involved in the analysis, the actual risk to workers is expected to
be at least 10% less, making the MOE 380 or more. Risks of developmental

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                    toxicity to workers are expected to be low when appropriate protective
                    equipment and clothing are used.
                         To mitigate acute as well as chronic toxicity hazards during open
                    pouring of DCDIC, use of personal protective equipment (PPE) is required
                    including protective eyewear, chemical resistant gloves, footwear, socks, a
                    long-sleeved shirt, long pants and a respirator.
                         Post-application exposure is minimal posing negligible risk to workers.
                    Residential exposure and risk to homeowners are not expected, based on the
                    pesticide's use patterns.
                    Human Risk Assessment
                         Although DCDIC has two food uses (sugar beets and sugar cane), both
                    are under FDA's purview. EPA defers to FDA regarding DCDIC's dietary
                    risk.
                         The open pouring method of applying DCDIC to cooling tower water
                    appears to pose the greatest risk of developmental toxicity to applicators.
                    However, EPA's worst case exposure assessment probably results in an
                    overestimate of risk; the actual risk to workers is expected to be low when
                    appropriate protective equipment and clothing are used, as required by the
                    RED document. Post-application exposure and risk are likely to be minimal.
                    Residential exposure and risk to homeowners are not anticipated based on
                    DCDIC's use patterns.
Environmental
  Assessment
Environmental Fate
     The secondary oil recovery use of DCDIC normally would require
extensive data regarding potential ground water impacts. However, properly
encased injection wells preclude contact between materials placed down the
well and any aquifer in the area; so EPA believes the chemical is not likely to
present a hazard to ground water through this use. Other aquatic industrial
uses carry National Pollutant Discharge Elimination System (NPDES) permit
restrictions, limiting industrial discharges to acceptable levels for each site.
Ecological Effects
     DCDIC is practically nontoxic to birds, no more than slightly toxic to
freshwater and estuarine/marine fish, and moderately to highly toxic to
aquatic/estuarine invertebrates.
Ecological Effects Risk Assessment
     Because of its  current use patterns, DCDIC is not likely to be found at
levels of concern in the terrestrial environment, or to pose risks to birds.
                         EPA used a Tier Ic Estimated Environmental Concentration (EEC)
                    model to assess residue levels occurring immediately downstream from
                    industrial discharge sites.  High exposure and typical exposure scenarios were
                    developed for each use site.  Typical exposure case EECs do not exceed levels
                    of concern for any use sites; however, high exposure case EECs exceed levels

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    Additional Data
            Required
  Product Labeling
Changes Required
of concern for aquatic invertebrates at some industrial cooling towers and
sugar mills.  Thus, freshwater aquatic invertebrates may be at risk from
effluent at high exposure sites.  Similarly, estuarine and marine aquatic
invertebrates may be at risk from effluent at high exposure industrial cooling
tower and oil recovery sites.
     While the use of DCDIC as a pesticide is regulated by EPA's Office of
Pesticide Programs (OPP) under the federal pesticide law, FIFRA, the
discharge of effluent containing DCDIC to surface waters is regulated under
the NPDES permit program administered by EPA's Office of Water (OW)
with the states. The NPDES process takes local conditions into account in
issuing permits for the discharge of pollutants to bodies of water. EPA's OPP
and OW will share information and cooperate in overseeing the use of
biocides such as DCDIC.
Endangered Species
     The high exposure case scenarios described above exceed the levels of
concern for endangered fish at certain industrial sites,  and those for
endangered aquatic invertebrates at all sites.  Effluent  containing DCDIC
should not be discharged into aquatic habitats where endangered species are
known to live.
     EPA is working with the U.S. Fish and Wildlife Service to develop a
program to identify pesticides whose use may cause adverse impacts on
threatened and endangered species, and to implement mitigation measures that
will eliminate the adverse impacts. This program will require labeling that
directs users to county-specific bulletins for information about use restrictions
to protect endangered and threatened species in the county.

     The generic data base for DCDIC is substantially complete.  However,
for confirmatory  purposes, EPA is requiring an additional mutagenicity study
and data indicating the products of hydrolysis. The Agency also is requiring
product-specific data, including product chemistry and acute toxicity studies,
as well as revised Confidential Statements of Formula and revised labeling for
reregi strati on.

     All end-use products containing DCDIC must comply with EPA's
current pesticide  product labeling requirements. In addition:
Effluent Discharge Statement - All end-use (and manufacturing use)
products that may be contained in an effluent discharged to the waters of the
U.S. must bear the following  revised effluent discharge statement:
     "Do not discharge effluent containing this product into lakes, streams,
     ponds, estuaries, oceans or other waters unless in accordance with the
     requirements of a National Pollutant Discharge Elimination System
     (NPDES) permit and the permitting authority has been notified in
     writing prior to discharge.  Do not discharge effluent containing this
     product to sewer systems without previously notifying the local sewage

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                      treatment plant authority. For guidance contact your State Water Board
                      or Regional Office of EPA."
                PPE Requirements - All end-use product labels must bear the following
                statement:
                      "For open pouring of this product, workers must wear eyewear,
                      chemical-resistant gloves, footwear, socks, long-sleeved shirt, long
                      pants and a respirator with either an organic-vapor-removing cartridge
                      with a prefilter approved for pesticides (MSHA/NIOSH approval
                      number prefix TC-23C) or a canister approved for pesticides
                      (MSHA/NIOSH approval number prefix TC-14G)."
 Regulatory
Conclusion
     The use of currently registered products containing DCDIC in
accordance with approved labeling will not pose unreasonable risks or adverse
effects to humans or the environment.  Therefore, all uses of pesticide
products containing DCDIC are eligible for reregi strati on.
     Although there is some concern about potential effects on aquatic
organisms exposed to effluent from industrial use of DCDIC, discharge of
such effluent generally will not cause unreasonable adverse effects on the
environment.  EPA's OPP and OW will share information to improve the
regulation of DCDIC's use at specific sites across the country.
     Products containing DCDIC will be reregistered once the required
confirmatory generic data, product-specific data, revised Confidential
Statements of Formula and revised labeling are received and accepted by
EPA, and after the other active ingredients in these products also are
determined to be eligible for reregi strati on.
   For More
Information
     EPA is requesting public comments on the Reregi strati on Eligibility
Decision (RED) document for DCDIC during a 60-day time period, as
announced in a Notice of Availability published in the Federal Register.  To
obtain a copy of the RED document or to submit written comments, please
contact the Pesticide Docket, Public Response and Program Resources
Branch, Field Operations Division (7506C), Office of Pesticide Programs
(OPP), US EPA, Washington, DC 20460, telephone          703-305-5805.
                      Following the comment period, the DCDIC RED document will be
                available from the National Technical Information Service (NTIS), 5285 Port
                Royal Road, Springfield, VA 22161, telephone 703-487-4650.
                      For more information about EPA's pesticide reregi strati on program, the
                DCDIC RED, or reregi strati on of individual products containing DCDIC,
                please contact the Special Review and Reregi strati on Division (7508W), OPP,
                US EPA, Washington, DC 20460, telephone            703-308-8000.
                      For information about the health effects of pesticides, or for assistance
                in recognizing and managing pesticide poisoning  symptoms, please contact

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the National Pesticides Telecommunications Network (NPTN). Call toll-free
1-800-858-7378, between 8:00 am and 6:00 pm Central Time, Monday
through Friday.

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