& ti
TSCA
-in-Progress
Bulletin
Office of Pesticides
(OPTS)
sif (i „ .4,',
SSI jSqra-wV^V-
icides & Toxic Substances
Vol. 4, No. 5
October 1983
This news bulletin is intended to inform all persons concerned with the Toxic Substances Control Act (TSCA) about
recent developments and near-term plans. For further information or to request copies of documents mentioned,
write the TSCA Assistance Office (TAO), (TS-799) EPA, Washington, D.C. 20460, or call toll-free 800-424-9065 or, in
Washington, D.C., or from outside the continental United States, (202) 554-1404.
REGULATORY & REQUIRED ACTIONS
PREMANUFACTURE NOTIFICATION... SECTION 5
Under section 5, persons must notify EPA at least 90
days before manufacturing or importing a new chemi-
cal substance for commercial purposes. A new chemical
is defined in the Act as any chemical substance not in-
cluded on an inventory of existing chemical substances
compiled under section 8(b) of TSCA. Such an inventory
was compiled and published, and on July 1, 1979 the
premanufacture notice (PMN) requirements of section 5
went into effect. Proposed PMN requirements and re-
view procedures were first published on January 10,
1979. Since then the requirements have been repro-
posed and EPA has issued an interim policy statement
regarding PMN reporting under the Act.
PMN Rule Effective on October 26, 1983
On May 13, 1983 EPA issued a final PMN rule which was
scheduled to become effective on July 12, 1983. EPA re-
ceived petitions from the Chemical Manufacturers As-
sociation and the Society of the Plastics Industries ask-
ing the Agency to stay the effective date of the rule.
Both groups raised issues concerning various parts of
the rule.
Based on the petitions, EPA postponed the effective
date of the rule to give the Agency time to clarify cer-
tain provisions of the rule.
On September 13, 1983 EPA published a notice (48 FR
41132) establishing October 26, 1983 as the effective
date for the major provisions of the PMN rule. The
Agency stayed certain parts of the rule but said that all
PMNs received on or after October 26, 1983 must be
submitted on the PMN form, and that notice submitters
must comply with the provisions of the rule that are in
effect.
The provisions of the rule that are stayed concern re-
search and development exemption requirements, the
definition of "possession or control" (companies must
submit test data in their "possession or control"), and
the submission of information on chemicals related to
the PMN substance. EPA said these postponements will
neither place the public at greater risk nor adversely af-
fect the operation of EPA's new chemical review
program.
1
-------
COMMENCEMENT OF MANUFACTURE NOTICES...
SECTION 5
Under section 5(a)(1) a person who intends to introduce ginning manufacture or import. Listed below and on the
into commerce a chemical substance not on the TSCA next few pages are the latest commencement of manu-
Inventory must notify EPA at least 90 days before be- facture notices EPA has received.
NEW CHEMICAL SUBSTANCES FOR WHICH EPA HAS RECEIVED COMMENCEMENT
OF MANUFACTURE NOTICES
(ainca publication of tha August 1983 Chamicala-in-Prograaa Bulletin)
PMN no. Submitter Chemical Identification PR
Citation
CBI»Confidential Business
Information G-Generic Name Do = Ditto
80-63
Witco Chemical Co,
80-359
CBI
80-634
Emco Chemical Co.
81-90
W.R. Grace & Co.
81-260
CBI
81-282
Allied Corp.
81-298
CBI
81-330
Do
81-425
Do
81-435
Do
81-497
CIBA-GEIGY Corp.
81-592
Emery Industries Inc.
81-593
Do
82-47
CBI
82-77
Do
82-305
Hercules Inc.
82-374
CBI
82-389
ITOH Co.
82-418
CBI
82-467
Do
82-512
Do
82-513
Do
82-647
Do
Alky I substituted cyclic peroxyketal
G Neutralized polymer of substituted
polypropylene oxide and an epoxy resin
G Monoethanol amide of long chain fatty acid
G Oxime blocked polyurethane prepolymer, water
borne
Trimethylolpropane neopentylglycol, phthalic
anhydride, siloxanes and silicones, de-me,
methoxy Ph, polymers with Ph silesquioxanes,
methoxy-terminated
G Modified olefin/carboxylic acid copolymer
G Copolymer of styrene alkyl acrylates, alkyl
methacrylate, methacrylic acid with
substituted acrylamide
G Acrylic modified alkyd resin
Aromatic aliphatic branched polyester resin
1-(2-nitrophenyl)ethanone
G Polymers of alkylamines and aryl epoxides
Sorbitan nonanoate
Sorbitan nonanoate, poly(oxy-1,2-ethanediyl)
derivatives
G Alkyl, alkanol derivative of ammonia, chloride
salt
Higher alkyl acrylate copolymer
Modified hydroxyethylcellulose
Alkyl thiodiazole
Reaction product of [[(phosphonomethyl) imino]
bis [6,1-hexanediyl-nitrobis(methylene)]],
tetrakis phosphonic acid and
(2,2'oxybi8ethanol, reaction products with
ammonia; morpholine derivatives, residues)
Hydrogen bis[1-[3,5-disubstituted-2-
hydroxyph$nyl)azo]-3-(N-mono8ub8tituted)-
2-naphthalenolate (2-)]chromate (1-)
Aromatic aliphatic branched polyester resin
Phenyl derivative of an ethyl methacrylate
Alkyl diol, toluene diisocyanate, alkene ester
adipic acid resin
G [(BenzoquinolinylMimidazoyl methylene))-
indenedione derivative, mixed salt
45 FR 28199
4/28/80
46 FR 8714
1/27/81
46 FR 8717
1/27/81
46 FR 19314
3/30/81
46 FR 35344
7/8/81
46 FR 35339
7/8/81
46 FR 36243
7/14/81
46 FR 38580
7/28/81
46 FR 45808
9/15/81
46 FR 45995
9/16/81
46 FR 49946
10/8/81
46 FR 58177
11/30/81
Do
47 FR 5328
2/4/82
47 FR 7486
2/19/82
47 FR 19781
5/7/82
47 FR 23554
5/28/82
47 FR 25401
6/11/82
47 FR 26235
6/17/82
47 FR 30103
7/12/82
47 FR 33236
7/30/82
Do
47 FR 41165
9/17/82
2
-------
82-648 Do
82-673 Texaco Chemical Co.
82-694 CBI
82-695 Do
82-696 Do
82-706 Do
83-29 Do
83-49 Do
83-70 Goodyear Tire
& Rubber Co
83-123 CBI
83-238 Do
83-241 Do
83-263 Do
83-272 Do
83-277 3M Co.
83-281 CBI
83-298 Sun Refining & Marketing
Co.
83-304 Amchem Products, Inc.
83-306 Sun Refining Marketing Co.
83-314 CBI
83-318 Do
83-329 Do
83-369 Do
83-428 Chattem Chemicals
83-430 CBI
83-441 Do
83-449 Biddle Sawyer Co.
83-465 CBI
83-478 Do
83-485 Do
83-497 Sodyeco Div., Martin
Marietta Corp.
83-502 CBI
83-507 Do
83-511 Do
83-535 Montedison USA, Inc.
G Do
G Substituted polyethyleneamine
polyisobutenylsuccinimide
G Trialkyl dioxane
G Alkyl bicyclononane
G Alkyl spirononane
G Sulfophenylazonaphthyl dye
G Alkyldiarylphosphine
G Substituted pyridine
G Benzenedicarboxylic acid saturated mixed
glycols copolyester
Poly[oxy(methyl-1,2-ethanediyl)], a, a', <*"-1,2,3-
propanetriyltris [w-hydroxy-polymer with
a-hydro-w-hydroxypoly[oxy-(methyl-1,
2-ethanediyl)] and 1,1-methylenebis
[4-isocyanatobenzene]
G Polyamide
G Polyester polycarboxylate salt
G Substituted thiocyclic compound
G Substituted pyridine
2-Oxepanone, polymer with
2,2'-[oxybis(methylene)]bis[2-
(hydroxymethyl)-1,3 propanediol]
Benzenesulfonamide salt
Toluene alkylate
G
G
G
G
G
G
G
G
G
G
G
G
83-550
CBI
Bis(benzyl-thioureidoethyl)-dithiocarbamic acid-
s-propylester-w-sulfonlc acid sodium
Poly alkyl benzoic sulfonate
Ester of aromatic acids and aliphatic polyols.
Acrylic copolymer of styrene and methacrylate
monomers
Substituted phenyl azo substituted
naphthalenedisulfonic acid, sodium salt
Methyl-methyleneimidazole derivative of
methyl-pyrazoloquinazolon-
azomethylphenylbenzothiazole
Bis alkoxy aluminum acetoacetic ester complex
Polyester of aliphatic polyols, vegetable oil and
aromatic dibasic acids
Polymer of methyl acrylate, ethyl acrylate and
acrylamide
2-Ethyl-2-methyl butanoic acid
Metal polyisobutenylsuccinate
Carboxylic acid derivatives of alkoxylated
phenol derivatives and alkoxylated
polyamines
Alkyl branched alkannoate
Reaction product of 1,3-benzenediamine,
hydroxybenzene and an oxo alkane with
sodium sulfide
Aminoheterocyclyl branched alkane
Monocyclic sulfur derivative
Polyester
N,N'-bi8(2,2,6,6-tetramethyl-4-plperidyl)
hexamethylenediamine polymer with ethane-
1,2-dibromo
Polymer of formaldehyde and substituted
phenols
Do
47 FR 42151
9/24/82
47 FR 44608
10/8/82
Do
Do
Do
47 FR 47066
10/22/82
47 FR 49073
10/29/82
47 FR 50339
11/5/82
47 FR 52224
11/19/82
47 FR 53782
11/29/82
Do
47 FR 55422
12/9/82
47 FR 57333
12/23/82
Do
Do
Do
Do
Do
Do
Do
48 FR 72
1/3/83
48 FR 3045
1/24/83
48 FR 6396
2/11/83
Do
Do
48 FR 6589
2/14/83
48 FR 7300
2/18/83
Do
48 FR 8343
2/28/83
48 FR 9365
3/4/83
Do
Do
48 FR 10468
3/11/83
48 FR 11499
3/18/83
48 FR 12690
3/26/83
3
-------
83-551
Do
G
Modified polymer of formaldehyde and
Do
substituted phenols
83-553
llford Inc.
Ethanesulfonic acid, 2-[bis(2-cyanoethyl)
Do
phosphinol-potassium salt
83-554
CBI
G
1,3-benzenedicarboxylic acid, 5-substituted,
Do
polymer with 1,2-ethanediol and oxo-
heteropolycycle
83-555
Do
G
Do
Do
83-564
Do
G
Dialkyl cycloaliphatic diester
Do
83-566
E.I. du Pont de Nemours &
G
Substituted chlorobenzene
Do
Co., Inc.
83-567
CBI
G
Modified acrylic copolymer
Do
83-573
Do
G
Unsaturated polyester
48 FR 14035
4/1/83
83-577
Do
G
2-(2-haloaryl)amino-6-(N,N-dialkylamino)
Do
fluoran
83-578
Do
G
Alkoxymethyl polysilazanes
Do
83-586
E.I. du Pont de Nemours &
G
Mixed acrylic copolymer
Do
Co., Inc.
83-592
CBI
G
Acrylic acid polymer
48 FR 15181
4/7I83
83-597
Do
G
Cycloaliphatic isocyanate-amine based polyot
Do
prepolymer
83-598
E.I. du Pont de Nemours &
G
Polyester resin of aliphatic polyols, mixed
Do
Co., Inc.
aromatic diacids and aliphatic diacid
83-599
Do
G
Polyester resin of aliphatic polyol, mixed
Do
aromatic diacids, aliphatic diacid and aromatic
diisocyanate
83-601
Huels Corp.
G
Halogenated alkene acid ester
Do
83-612
Diamond Shamrock Corp.
G
Polymer of alkyl and heteromonocylic amines
48 FR 16331
and an alkanedioic acid
4/15/83
83-614
3M Co.
G
Modified fluoroaliphatic adduct
Do
83-615
Do
G
Perfluoroaliphatic isocyanate adduct
Do
83-631
CBI
G
Polymer of formaldehyde and substituted
48 FR 17385
phenols
4/22/83
83-650
Do
G
Polymer of a diisocyanate, poiyether glycol,
48 FR 20487
alkanoi substituted cycloalkane, dipropylene
5/6/83
glycol
83-651
Do
G
Polymer of a diisocyanate poiyether glycol,
Do
alkanoi substituted cycloaikane, dipropylene
glycol, alkanoi diamine, substituted bisphenol
A polymer
83-660
Manchem, Inc.
G
Perfluorinated hydrocarbon
Do
83-661
CBI
G
Polyimide ester
48 FR 20490
5/6/83
83-665
Do
G
Mixed polyalkoxy alkyi siloxanes and
Do
silsesquioxanes
83-666
Do
G
Aromatic alkyd
Do
83-670
Do
Polymer of neopentyl glycol, trimellitic
Do
anhydride, phthalic anhydride, trimethyl
83-675
Do
G
83-683
Farchan Laboratories, Inc.
83-684
Do «
83-707
Milliken & Co.
G
83-718
CBI
G
83-729
Do
G
83-735
Do
G
83-763
Do
G
83-764
Do
G
83-765
Do
G
83-766
Do
G
83-777
Do
G
pentanedioi
Vinyl acetate, butyiacrylate, substituted
methacrylate, terpoiymer
1 -Ethynyl-1 -cyciopentanol
1,4-Bis(1 -hydroxy cyciopentyl)butadiyne
Chromophore substituted poiy(oxyalkylene)
Mixed phthalic acid-tail oil fatty acid alkyd resin
Copolymer of mixed alkyl esters of acrylic and
methacrylic acids
Ketimine
N,N'-bis(substituted alkyl) dicarboxyiic acid
diamine
Oo
Poiylaikylene-bistamidoalkyD-bis (dialkyl)
oxoaikylene diammonium dlchloride]
Do
Disubstituted methanone
Oo
48 FR 21371
5/12/83
Do
48 FR 22793
5120183
Do
48 FR 23903
5/27/83
Do
48 FR 24968
6/3/83
Do
Do
Do
Do
4
-------
83-781 Do G An organic complex of a halogenated metal Do
83-782 Do G Product of alcohol, halogenated metal, organic Do
complex of halogenated metal
83-783 Do G An organic complex of halogenated metal Do
SIGNIFICANT NEW USE... SECTION 5(a)(2)
Under section 5(a)(2) EPA determines when certain
uses of chemical substances are significant new uses. A
determination is made by a significant new use rule
(SNUR) promulgated after considering all relevant fac-
tors. The factors include the projected volume of Manu-
facturing and processing of the substance, the extent to
which the substance's new use changes the type and
form of exposure to humans or the environment, the
extent to which the substance's use increases the mag-
nitude and duration of exposure to humans or the envi-
ronment, and the anticipated manner and methods of
manufacturing, processing, distributing in commerce
and disposal of the substance. Under section 5(a)(1)(B),
persons must notify EPA at least 90 days before manu-
facturing, importing or processing a chemical sub-
stance for a significant new use as determined by EPA.
In addition, persons who intend to export, for any pur-
pose, a substance that is subject to a proposed or pro-
mulgated SNUR must notify EPA under section 12(b).
EPA Proposes SNUR for Two Corrosion Inhibitors
In 1980, EPA, through the PMN process, approved the
use of two new substances as corrosion inhibitors for
oil well service lines and secondary recovery recircu-
lating water systems. Now EPA is seeking, by proposing
a SNUR, to prevent use of either substance in metal-
working fluids. EPA stated in a notice [August 24, 1983
(48 FR 38502)] that it is concerned that these substances
may present unnecessary risks to human health if they
are used in metalworking fluids.
The two chemicals and their PMN numbers are: iso-
propylamine distillation residues (80-289) and
ethylamine distillation residues (80-290). Both PMNs
were submitted by Air Products and Chemicals, Inc. For
the use stated in the PMN, EPA had little concern for the
substances and did not take regulatory action. But use
of the substances in metalworking fluids that contain
nitrosating agents, such as nitrite, may result in the for-
mation of nitrosamines that possess either known or
potential carcinogenic activity. EPA is also concerned
that if the substances are used in metalworking fluids, a
substantial number of people will be exposed to poten-
tially high levels of the nitrosamine-containing metal-
working fluids for significant periods of time.
EPA Proposes SNUR for New Forms of PMN Chemical
EPA proposed a SNUR for 1,2-beriienedlamlne,
4-ethoxy, sulfate in powder or dry solid form, on
August 30, 1983 (48 FR 39248). The substance was the
subject of PMN 83-106, submitted by American Hoechst
orp. The intended use is as a dye intermediate.
In its PMN review, EPA was concerned that the sub-
stance may possess oncogenic potential following inha-
lation or Ingestion. However, the Agency determined
tnat human exposure to the substance would be negli-
gible because of the compound's physical state, which
the company said would be a water wet solid to be
imported in drums, in that form EPA said inhalation ex-
posure would be negligible because the compound
would not dust during manual transfer. But In other
forms, such as powder or dry solid, EPA predicted ex-
posure would be significantly greater.
The PMN review ended on February 5, 1983. Having re-
ceived notice from American Hoechst that production
has begun, EPA is adding the substance to the TSCA In-
ventory. This means any other person has the right to
manufacture or process the substance in any physical
form despite the fact that as a powder or dry solid the
exposure would be significantly greater. Because of
that fact EPA is proposing to designate manufacture,
import or processing of the substance in a powder or
dry solid form as a significant new use. The SNUR will
enable the Agency to review those uses before they
occur.
REGULATION PENDING DEVELOPMENT OF
INFORMATION.. .SECTION 5(e)
The Administrator may issue a section 5(e) order to
take effect at the end of the PMN review period. The or-
der may limit or prohibit manufacture, processing, dis-
tribution in commerce, use or disposal of the sub-
stance. The action can be taken if information available
to EPA is insufficient to permit a reasoned evaluation of
the risks, and if the substance may present an unrea-
sonable risk to either health or the environment. A 5(e)
order may also be issued if there is insufficient infor-
mation and the substance may be produced in large
quantities and may result in significant or substantial
human exposure, or substantial release to the
environment.
A 5(e) order can be a consent order or a unilateral or-
der. in a consent order the company that submitted the
PMN negotiates the terms of the order with EPA, and
the company agrees that it is bound by the order and
waives its rights to file objections to the order. This
waiver does not affect any other rights that the compa-
ny may have under TSCA,
In a unilateral order, EPA takes unilateral action in re-
stricting or prohibiting the manufacture, import, or use
in commerce of the PMN substance and EPA sets a date
for the proposed order to become an order.
S(a) Order Restricts New Chemical Use
An EPA order now restricts manufacturing, processing,
and distribution in commerce and use of a new chemi-
cal, generically called polygiycidyl aminde. EPA said it
was unable to evaluate the health effects of the sub-
stance because the company supplied insufficient infor-
mation in the PMN.
The 5(e) order against PMN 83-394, submitted by
Celanese Specialty Resins, took effect on August 17,
1983. The order does not require Celanese to develop
additional data but the commercial restrictions will be
in effect until sufficient data are submitted to EPA. The
order mandates that Celanese'* workers wear gloves
that are impervious to the PMN substance. The order
also requires that a company worker involved with the
substance wear a face shield and clothing that covers
6
-------
the entire body. Among other restrictions, EPA set label
standards for the substance and permits Celanese to
provide the substance only to those who will perma-
nently alter the substance's structure.
Because the order permits restricted production, the
chemical will automatically go on the TSCA Inventory
when Celanese begins production. Under TSCA, once
on the Inventory any other person could begin to manu-
facture, process, distribute or use the PMN substance
without restriction. However, EPA said in the order it in-
tends to propose a significant new use rule (SNUR) un-
der section 5(a)(2) of TSCA. The SNUR requirements
will ensure that all manufacturers and processors of the
PMN substance are treated equally.
REGULATION OF HAZARDOUS
SUBSTANCES.. .SECTION 6
Under section 6, EPA is authorized to control a chemi-
cal as a hazardous substance if the Agency finds that
the chemical will present an unreasonable risk of injury
to human health or the environment. Under 6(a), EPA is
required to apply one or several requirements of the
law to the extent necessary to protect against the risk.
PCB Regulatory Background
Under section 6(e), EPA is required to control the man-
ufacturing, processing, distribution in commerce, and
use of polychlorinated biphenyls (PCBs). On May 31,
1979, EPA promulgated a comprehensive PCB rule. On
October 30, 1980 in response to a petition, the U.S.
Court of Appeals for the District of Columbia Circuit set
aside portions of the May 31, 1979 rule. The court re-
manded the set aside portions to EPA for further action.
Responding to the court order, EPA amended the May
31, 1979 rule on August 25, 1982 and October 21, 1982.
EPA Issues Four New PCB Policies
EPA issued, on August 16, 1983, four final TSCA compli-
ance program policies concerning PCBs. Each policy
clarifies issues concerning PCB storage for disposal re-
quirements, and disposal of PCBs that results from
physically separated liquids and solids.
REPORTING RULES
SIGNIFICANT ADVERSE REACTION RECORDS...
SECTION 8(c)
Section 8(c) requires any person who manufactures,
processes or distributes in commerce any chemical
substance or mixture to keep records of significant ad-
verse reactions to health or the environment alleged to
have been caused by a substance or mixture. Allega-
tions of adverse reactions to the health of employees
must be kept for 30 years and all other allegations for
five years. EPA may inspect these records and require
submission of copies of these records.
EPA Implements 8(c) Rule
On August 22, 1983, EPA published a final rule imple-
menting section 8
-------
SUBSTANTIAL RISK ... SECTION 8(e)
Under section 8(e) persons who obtain new information
which reasonably supports the conclusion that a sub-
stance presents substantial risk of injury to human
health or the environment must notify EPA within IS
days. These notices are then reviewed by the Office of
Toxic Substances
-------
idence of significant production or some type of
exposure.
When OTS searches the literature in preparing a CHIP it
generally limits the search to automated data bases and
reference works. But OTS encourages individuals and
firms to submit unpublished or recently published re-
ports, and all other hard-to-obtain studies on the chem-
ical selected for a CHIP. Relevant studies from the pub-
lic could include data on health effects, environmental
effects, commerical production and uses, exposed pop-
ulations, environmental levels, or any other material
that can aid in the assessment of the chemical's impact
on health or the environment. OTS is also interested in
knowing of current testing of a CHIP candidate or as-
sessment activities by other organizations.
Information about the chemicals listed above should be
sent immediately to:
TSCA Document Control Officer
TS-793
Attn: T. O'Bryan
Washington, D.C. 20460
The TAO continues to offer to notify individuals and or-
ganizations by letter every time OTS starts a new CHIP.
Persons who think they can aid the CHIP information
gathering process will have their names added to the
list if they contact the TAO. All information submitted in
response to the solicitations will be placed in a public
file and made available for public inspection, unless the
submitter is able to assert a claim of confidentiality in
accordance with the provisions of section 14 of TSCA.
EPA will handle all confidentiality claims in accordance
with its procedures governing the confidentiality of
business (40 CFR Part 2 Subpart B).
EPA Publishes PCB Guide
EPA has available a guide to aid people who must com-
ply with the provisions of the polychlorinated biphenyl
(PCB) rules promulgated under TSCA. The guide in-
cludes a summary of PCB regulatory actions, a question
and answer section and the PCB final rules. Because of
the cost of publishing the guide, only one copy will be
sent to an address.
Booklet Aids Chemical Importers and Exporters
The TAO will soon distribute an EPA booklet that sum-
marizes both the import and export requirements of
TSCA (sections 12(b), and 13) and the rules promul-
gated under these sections of the Act. The booklet,
which lists alphabetically all substances subject to the
import and export requirements of TSCA, can be used
as a quick reference guide by chemical importers and
exporters.
PMN Videotapes and Notebook Available
Three videotapes on the final premanufacturing notice
(PMN) rule and one PMN seminar notebook are avail-
able for purchase. The tapes and book came out of the
PMN Seminar held by EPA, on June 23, 1983, in Wash-
ington, D.C.
The National Audiovisual Center (a National Archives
unit) is selling:
* Questions and Answers on the Final PMN Rule (20
min.)
* Highlights of the June 23, 1983 PMN Seminar (43
min.)
* How to Complete the PMN Form (18 min.)
* Notebook: PMN Seminar (approx. 120 pgs.)
For prices and how to order: (301) 763 1896
National Audiovisual
Center
Attn: Ordering Section
8700 Edgeworth Dr.
Washington DC 20409
The TAO is now distributing copies of the follow-
ing recently completed CHIPs:
Bis(2-chloro-1-methylethyl)
108-60-1
ether
Hexachloronorbornadiene
3389-71-7
2,3-Dichloro-p-dioxane
95-59-0
Dimethyl methylphosphonate
756-79-6
OTS encourages comment on the
accuracy and
thoroughness of information presented in its
CHIPs.
TSCA Assistance Office (TS-799) ^ "au u.a
Office of Pesticides & Toxic Substances j300
U.S.E.P.A,
Washington, D.C. 20460
First Class Mall
Postage and Faas Paid
EPA
Permit No. G-3S
THE TSCA CHEMICALS-IN-PROGESS BULLETIN
------- |