United States
Environmental Protection
Agency
Pesticides And
Toxic Substances
(TS 793)
EPA 560'7-90-006
August 1990
Instructions For Reporting For
The Partial Updating Of The
TSCA Chemical Inventory
Data Base

-------
Instructions for Reporting for the Partial Updating
     of the TSCA Chemical Inventory Data Base
       U.S. Environmental Protection Agency
            Office  of Toxic  Substances
               Washington,  DC  20460

-------
                           NEW IN 1990
The 1990 reporting instructions incorporate the following changes
from 1986 instructions:

     Companies report  using a revised  reporting form,  which is
     readable by  optical  character recognition  scanners.   Note,
     however, that the information to be reported has not changed
     from 1986 requirements.


     Companies may now report using  floppy  diskettes,  as well as
     computer tape.  In addition,  the electronic reporting format
     has  changed,  and there  is  no  minimum  number of  chemical
     substances required for reporting electronically.


     A 1990 Supplement to the TSCA Inventory  has been  published,
     and  the  computer tape version  of the  Inventory has  been
     updated.


     An  appendix  to the  instructions lists  chemical  substances
     regulated under sections 4,  5(a)(2), 5(b)(4),  or  6  of TSCA.
     This  list  has  been updated to  include recent  regulatory
     actions.
     Addresses and telephone numbers for contacting the Agency have
     been updated.


     Information  requirements  when  requesting a  search  of  the
     Master Inventory File have been reduced.


     Chemical substances whose  identities are confidential may now
     be reported on the same reporting form  (or diskette/tape) as
     non-confidential chemical substances.

-------
       INSTRUCTIONS FOR REPORTING FOR THE PARTIAL UPDATING
             OF THE  TSCA CHEMICAL INVENTORY DATA  BASE

                     (INVENTORY UPDATE RULE)
                         I.  INTRODUCTION


     The Environmental Protection Agency (EPA) in 1986 promulgated
a rule for the partial updating of the TSCA Chemical Inventory data
base, often referred  to  as  the Inventory  Update Rule.   The rule
requires  manufacturers   and   importers   of  selected   chemical
substances included on the  TSCA Chemical  Substance  Inventory to
report current data on the production volume, plant site, and site-
limited status of these substances.   The rule was promulgated under
the authority of section 8(a)  of the Toxic Substances Control Act
(TSCA), and is codified in Subpart B of Part 710 of Title 40 of the
Code  of Federal  Regulations   (40  CFR  Part  710).    A  technical
amendment to the rule, affecting only the  reporting form and type
of magnetic media for electronic reporting, was  published in the
Federal Register in August 1990.

     Reporting under the  Inventory Update Rule takes place at four
year intervals  which began in  1986.  These instructions pertain to
reporting during 1990.

     This booklet provides detailed instructions and examples to
assist manufacturers and  importers in reporting under the Inventory
Update Rule. These instructions, however,  are not a substitute for
the  rule.   Manufacturers  and  importers  of  chemical  substances
should  carefully  review the  Inventory Update Rule  to  determine
whether they are  subject to  its reporting requirements  and what
information is to be reported.

     Persons reporting under the Inventory Update Rule should have
a thorough understanding of  the scope and organization of the TSCA
Chemical Substance Inventory and of  the criteria  used to determine
whether a substance belongs on the Inventory.  Information on the
scope  and organization  of  the Inventory  can   be  found  in the
introductory pages of the 1985 edition of the  Inventory and  in the
1990  Supplement to  the  Inventory.   Subpart A of 40  CFR Part 710
prescribes criteria for inclusion of a substance  on the Inventory.

     See section V below for  instructions on how to obtain copies
of the Inventory and of TSCA  regulations.

-------
                              - 2 -

    II.  DETERMINING THE SUBSTANCES FOR WHICH YOU MUST REPORT


     To ascertain  your  reporting obligations, you must  make two
determinations for each  chemical substance that you manufacture in
the United States or import into the United States:

     A)   Is the substance  reportable  under the Inventory Update
          Rule?

     B)   Are you  a manufacturer or importer who  is required to
          report that substance?

A.  Reportable substances.

     To be reportable under the Inventory Update Rule, a chemical
substance must meet two requirements:

     1)   The  substance must be  on the TSCA  Chemical Substance
          Inventory as of August 25, 1990; and

     2)   The substance must not be of a type exempt from reporting
          under the Inventory Update Rule.

     1.    Inventory substances.    The  TSCA Chemical  Substance
Inventory  is a list  of chemical  substances in commerce  in the
United States.  The Inventory was originally compiled from reports
submitted by manufacturers,  importers  and  processors in 1978 and
1979.   New  chemical substances are added to the  Inventory when
companies who  have submitted Premanufacture Notifications  (PMNs)
or Polymer Exemption Applications  to EPA under  section 5 of TSCA
notify  the  Agency  that manufacture  or import  of  the  chemical
substance has commenced.

     EPA keeps a Master  Inventory File, which is the authoritative
list all the eligible chemical substances which have been reported
to EPA for inclusion in the Inventory.   EPA also makes available
a public version of the Inventory,  both in printed and computer-
readable form.  This public version does not contain the specific
identities of chemical substances whose identities are confidential
business  information  (CBI).   However,  the  printed  version does
contain generic chemical names  for these CBI chemical substances.
The public version of the Inventory has been updated several times.
The most complete  edition of the printed Inventory was published
in  1985,   and  a  1990  supplement  to  the  1985 edition is  now
available.  The computer-readable version is current as of December
1988.  See section V, below,  for information on obtaining copies
of the public version of the Inventory.

-------
     2.  How to determine whether  a  chemical  substance is listed
on the Inventory.    Many companies have already determined that
the substances they  manufacture  or import are on  the Inventory.
You may have been able to make such a determination if:

          you have located the substance in a previous edition of
          the public Inventory;

          you reported  the  substance to EPA under  the Inventory
          reporting  rule in  1978 or  1979  or  as  an  Inventory
          correction;

          in response to a PMN, Test Market Exemption Application,
          bona fide request, or other  communication the Agency has
          informed you that the substance is on the Inventory; or

          you  have   submitted  a  Notice  of   Commencement  of
          manufacture or import for a PMN substance.

     If you do not already know whether a substance you manufacture
or import is on the  Inventory, you should consult  a  copy of the
latest public version of the Inventory  (see section V, below, for
instructions on how to  obtain a copy).   The printed Inventory
provides detailed  information  on the organization of the Inventory
and on how substances are named and listed.

     Several commercial databases have incorporated  the public
version of the Inventory (which does  not  include substances with
confidential identities)  and   indicate  whether  a given  chemical
substance is included on the Inventory.  EPA can guarantee neither
the  currency  nor  the  accuracy   of  the  information  on  these
databases; however, there is no penalty for reporting a substance
which is not required to be reported.

     If at  this  point you know that your substances  are on the
Inventory, you may proceed to  section  II.A.2. to determine whether
they are of a type exempt from reporting under the Inventory Update
Rule.

     If  aftar  having  checked the  above  sources  you are still
uncertain  as  to whether a  chemical  substance  is  listed on the
Inventory, you should write EPA at the  following address:

          Document Processing Center  (TS-790)
          Office of Toxic Substances
          U.S.  Environmental Protection Agency
          401 M Street, S.W.
          Washington, DC  20460
          Room E-105
          ATTN: Inventory Update Rule Bonafide

     Your letter is a request  that EPA search the Master Inventory

-------
                              - 4 -

File, including confidential substances, to determine whether the
substance is listed.  You must substantiate the fact that you are
actually manufacturing  or  importing the substance in question by
providing the following information:

     (1)  company identification, address, and telephone number;

     (2)  the  specific  chemical   identity   of  the  substance,
          preferably  a  Chemical Abstracts Service  Preferred or
          Index Name, a Chemical  Abstracts  Service Registry Number
          (if available), and a structural  diagram (if available);

     (3)  a statement signed by a company officer that your company
          is manufacturing and/or importing the chemical substance
          for commercial purposes;

     (4)  a statement signed by a company officer that your company
          is  requesting this  search pursuant  to  the Inventory
          Update Rule; and

     (5)  an elemental analysis of  the  substance.


     You may claim  information in your letter as confidential by
circling  or bracketing the text  to  be  protected and  marking
"CONFIDENTIAL" on each page containing confidential information.
Failure to  so  mark  this information may result in EPA making the
information available to the public without further  notice to you.

     Note that this procedure is  similar but not identical to EPA's
bona fide procedure codified in 40 CFR §710.7(g)  and  §720.25(b).
If  you need a search of the Master  Inventory  File to determine
whether you are required to file a Premanufacture Notification, you
must follow the procedures  codified in  those sections.

     If you are an importer and cannot provide  all of the required
information   because   your  foreign   manufacturer/supplier   is
maintaining it is confidential, the manufacturer/supplier can send
the  information directly to EPA.

     Because  searches  of   the  Master  Inventory  File  require   a
considerable amount of time to process you  are urged to request
such a search only  if  your search of  the public version  of the
Inventory,- commercial databases, and your company's  records fails
to  resolve your  question.   Moreover,  if your  request  is  not
received prior to October 25,  1990, EPA cannot guarantee that you
will receive a response in  time for you to complete  the reporting
form before the end  of the  reporting period.

     3.   Excluded  substances.    Four  categories of substances,
though  included  on  the  Inventory,  are  largely  excluded  from
reporting under the  Inventory  Update Rule.   These categories are

-------
                              - 5 -

polymers,  inorganic  substances,  microorganisms,  and  naturally
occurring substances.   Refer to section 710.26  of  the Inventory
Update  Rule and  to the preamble  of the  June 12,  1986  Federal
Register  notice  (51  FR 21438)  announcing  the rule  for  precise
definitions of these categories.

     The   Inventory  Update  Rule   definition  of   polymer  is
sufficiently broad to include virtually all those substances that
are generally considered polymers.  These include polysaccharides
such as  agar and  gums,  and all  classes  of  proteins,  enzymatic or
structural.   However,  substances  which result  from hydrolysis,
depolymerization, or  chemical modification of polymers such that
the  final products are no longer polymeric  (e.g.,  a mixture of
amino acids which is the  result of  hydrolysis of a polypeptide)
are  not considered to  be  polymers,  and must  be  reported  if not
otherwise excluded.  For reporting purposes,  salts of polymers are
also considered to be polymers.

     a.   Determining  whether a  substance is excluded.  To assist
identification  of excluded substances,  most  of these substances
are labelled in the printed and computer-readable versions of the
Inventory  with  an  "XU" flag.   However, due  to  difficulties in
developing a computer algorithm for identifying all such substances
in the Inventory,  EPA was not able to flag all  excluded substances.
For example, inorganic substances and biopolymers found in the UVCB
Index  section  of  the  public  Inventory (chemical  substances of
unknown  or  variable composition,  complex  reaction  products, and
biological materials) are frequently not labelled with an XU flag.

     If a substance does not bear  an XU  flag  and section 710.26 of
the Inventory Update Rule  does not provide sufficient guidance to
determine  whether  the  substance  is excluded,  you  may  request
assistance  from EPA (see section VI, below,  for inquiries).   In
addition, the following substances,  though  not flagged with the XU
designation, nonetheless qualify as inorganic  substances:

          Name	CAS Number

          Carbon black        1333-86-4
          Carbon              7440-44-0
          Graphite            7782-42-5
          Charcoal            16291-96-6


     b.  When an  excluded  substance must still be reported.  With
the  exception  of  naturally  occurring substances,  a  chemical
substance  which falls  into  one of the  excluded categories must
still  be reported  if it  is the  subject  of a  rule proposed or
promulgated under section 4, 5(a)(2), 5(b)(4), or 6  of TSCA,  of an
order  issued under section 5(e) or  5(f),  or of relief which has
been granted under a civil action under section 5 or 7.  A  list of
all substances which fall into one of these  categories is contained

-------
                              - 6 -

in an appendix at the back of these instructions.


B.   Determining whether vou are a manufacturer or importer who is
     required to report a substance.

     Even if you manufacture or import a substance reportable under
the Inventory  Update Rule you  may  be exempt from  the reporting
requirements for that substance.  Questions relevant  to whether you
must report include:

     1.   Did  you  manufacture  or  import  10,000   pounds  (4,540
          kilograms)  or  more  of the reportable  substance  at any
          single site during the corporate  fiscal year immediately
          preceding the reporting period?

     2.   Do you qualify  as  a small manufacturer with respect to
          the substance?

     3.   Did you manufacture or import the reportable substance
          under circumstances which do not require reporting?
     1.   Manufacture or import of 10.000 pounds or more.

     a. Manufacturers and Importers.  Reporting for the Inventory
Update  Rule is done by individual site  of  manufacture or by the
organizational  site which controls importation.  For the purposes
of  the  following discussion,  manufacturers  and  importers  are
treated separately.

     Manufacturers.  A manufacturer is defined in 40 CFR §710.3(o).
Note that a manufacturer creates  a  substance  through a chemical
reaction.  Processors,  formulators, and distributors do not qualify
as  manufacturers  so  long as  they do  not  create  the substance
through a chemical reaction.

     Importers.   The site  of  importation  is  defined in section
710.28 (c) of the Inventory Update Rule as the site of the operating
unit which  is directly responsible for importing the substance and
which controls  the import transaction.   In  some cases  this may be
the site  of your headquarters, in others a  specific plant site or
a broker.

     Importers  under  TSCA  are  defined in  40  CFR   §704.3  and
§710.2(1).   Although  for a given  substance that your company is
importing at  a given  site  more  than  one  person may  meet  the
criteria  in sections 704.3 and 710.2(1), only one should report.

b.   Meeting the 10.000 pound annual production volume threshold.

-------
                              - 7 -

     Reporting is  required  for a chemical substance  only if you
manufactured or  imported  10,000  pounds  (4,540 kilograms)  or more
of the  substance at any single site during  the corporate fiscal
year  immediately  preceding the  reporting  period  (see  section
III.B., below,  for more  information  about fiscal year).  Moreover,
if during  the  year you manufactured  10,000  Ibs.  or  more of the
substance at some  sites and less than 10,000 Ibs.  at other sites,
you need report  the substance only for those  sites  at which you
manufactured or  imported 10,000 Ibs. or more.

     Companies that both manufacture and import the  same substance.
Such companies should add the manufacturing and  importation volume
at each site  (see above to  determine  site of importation)  to
determine whether  the 10,000  pound threshold has  been  met.   For
example, if you manufacture  5,000 pounds of a reportable substance
and import 6,000 pounds, you should report.

     Substances  in a mixture.   Although mixtures  (defined in 40
CFR §710.2(q))  are not reportable, the chemical substances  of which
a mixture  is comprised are reportable.   If  you manufacture the
substances  as  part  of  a mixture,  you  must determine for  each
substance  in the mixture whether the production volume was over
10,000  pounds.    Similarly,  if  you  import  a  mixture you  must
determine for each substance in the mixture whether  its importation
volume was 10,000  pounds or more.  Note that a person who creates
a mixture  by  combining existing  substances without  a chemical
reaction is  not  a  manufacturer of those  substances and therefore
does not report under the Inventory Update Rule.

     Recordkeepinq requirement.   Even if  you manufacture/import
less than 10,000 pounds of  a  reportable  substance  at a site, you
must maintain  records documenting  that  fact  (see  section IV.G.
below).

     2.  Small Manufacturers.   (For the purposes of the following
discussion, the term "manufacturers" refers to both manufacturers
and  importers.)    Small  manufacturers  are  usually  exempt  from
reporting under  the Inventory Update Rule  (but see  below for a
discussion  of  when  small manufacturers  are not  exempt).   You
qualify as  a small  manufacturer if you meet either one of the
following tests:

     1)   If your  total annual sales,  combined with those of your
          parent company, domestic or foreign (if any),  do not
          exceed $4 million, regardless of annual production volume
          you qualify as a small manufacturer.

     2)   if your total annual sales,  combined with those of your
          parent company,  domestic or foreign (if any), are between
          $4 million and $40  million,  you  qualify  as  a small
          manufacturer with respect to a particular substance for
          those plant sites at which the annual production volume

-------
                              - 8 -

          of the  substance  does not exceed 100,000  Ibs.   If the
          annual production volume of the  substance at any of your
          sites is over  100,000  Ibs.,  you are required to report
          only  for  those  sites.    Note  that  it  is possible  to
          qualify as  a  small  manufacturer with respect  to some
          substances and not others,  or some  plant  sites and not
          others.

See  40  CFR §704.3  for a more  complete  discussion  of  the small
manufacturer exemption.

     When a  small manufacturer must  still report.   Even if you
qualify  as  a  small manufacturer  you must still  report  if you
produced 10,000 Ibs.  or more of a  reportable substance which is
the subject of  (1) a rule proposed or promulgated under  section 4,
5(b)(4), or  6 of TSCA,  (2)  an order under section  5(e),  or (3)
relief granted  under a civil action under  section 5  or  7.  A list
of  all  substances  which fall  into one  of these  categories  is
contained in the  appendix.

     3. Additional reporting exemptions.   Persons who manufacture
or import reportable substances under the  following  circumstances
are not required to  report for those substances under the Inventory
Update Rule:

     a.   The chemical substance is manufactured or imported solely
          in small quantities for research and development.  NOTE:
          The preamble of the technical amendment to the rule makes
          a call  for comments on this exemption.

     b.   The chemical substance is imported as part of  an article.

     c.   The chemical  substance is manufactured as an impurity,
          byproduct, or  non-isolated intermediate, or in a manner
          incidental  to  another operation or upon end  use  of
          another substance or mixture,  as described  in  40 CFR
          §720.30(g)  and (h)  (see 48 Fed. Reg.  21746,  May 13,
          1983).

     d.   All the information required by the Inventory Update Rule
          was reported to EPA pursuant to a rule under section 8 (a)
          of TSCA between August 25, 1989 and August 24, 1990.


     Articles.  An  article  is  defined in  40  CFR  §710.2 (f)  as  "a
manufactured item (1) which  is formed to a  specific shape or design
during manufacture,  (2)  which has end use  function(s) dependent in
whole or in part upon its shape or design during end use, and (3)
which has either no change of chemical composition during its end
use or only those changes resulting in compositions which have no
commercial purpose separate from that of the article and that may
occur as described in section 710.4(d)(5), except that  fluids and

-------
                              - 9 -

particles  are  not  considered  articles regardless  of  shape  or
design."

     EPA  considers  imported  items  as  articles  if  they  are
manufactured  in a specific shape or design  for  a particular end
use application,  and this  design  is maintained  as  an essential
feature in the finished product.  Thus,  materials  such as metal or
plastic  sheets, wire,  coated fabric,  rolled carpet,  sheets  of
plywood and other similar materials will be viewed as articles by
EPA, even if, for example,  subsequent to import they are rolled or
drawn thinner,  cut,  printed,  laminated, or thermoformed, so long
as they meet the above criteria.  Substances which are part of such
articles are  not subject to reporting under the Inventory Update
Rule.

     If  an item  is  manufactured in  a  particular shape  for the
purpose of  shipping  convenience  and  the shape has no function in
the end use, it would not be considered an article. Thus, chemical
substances which  are part of items such as metal  ingots, billets,
and blooms are  subject  to reporting under  the  Inventory Update
Rule.

     Duplicative reporting unnecessary.  If between August 25, 1989
and August  24,  1990 you  submitted the information required by the
Inventory Update Rule in response to another rule promulgated under
section 8(a)  of TSCA  (e.g. the Preliminary Assessment Information
Rule,  40 CFR §712,  Subpart  B,  or  the Comprehensive Assessment
Information Rule, 40 CFR §704, Subpart D) ,  you are not required to
report  under the  Inventory Update  Rule  for the same substance
during 1990.


C.   DecisionmakincT  flow chart.

     The following flow  chart summarizes the  questions which must
be  answered  to  determine  your  reporting  obligations  for  a
particular  substance.   (For simplicity's sake, not all reporting
exemptions  are  included  in the flow  chart.)

-------
                   -  10  -

      REPORTING OBLIGATIONS  FLOW  CHART
         Is this substance listed
      on the TSCA Chemical Inventory
                  NO
                YES
            Is this substance a
       polymer, inorganic substance,
             microorganism, or
           naturally occurring?
           NO
                                   YES
Is the substance
subject to a
special regulatory
action under TSCA?
                                   YES
       Did you manufacture or import
       10,000 Ibs. or more per year
             at a single site?
                NO
               YES
       Are you a small manufacturer
            for this substance?
           NO
                                   YES
Is the substance
subject to a
special regulatory
action under TSCA?
                                   YES
       Did you manufacture or import
the chemical substance under circumstances
   for which reporting is not required?
                                        YES
                              You need not
                                 report

-------
                              -  11  -

D.   Manufacture or importation of chemical substances subject to
     TSCA but not included on the Inventory.

     When  checking the  chemical  substances  you manufacture  or
import  against the  TSCA Chemical Substances  Inventory you  may
discover that you are manufacturing or importing substances which
are not  on the Inventory but which should  have  been reported to
EPA  and  never were.    Such manufacture  or  importation  is  in
violation  of  section  15  of  TSCA   and  could  subject  you  to
administrative or criminal penalties.

     If you find that you have or may have manufactured or imported
chemical  substances  in violation of TSCA,  you should contact the
Agency at the  following address:

     Director, Compliance Division
     Office of Compliance Monitoring  (EN-342)
     Office of Pesticides and Toxic Substances
     U.S. Environmental Protection Agency
     401 M Street, S.W.
     Washington, D.C.  20460
     Attn:  Document Control Officer

     Information in your letter may be claimed as confidential by
circling  or bracketing  the text to be protected and marking the
page,  "CONFIDENTIAL."   Failure  to so mark  this information may
result  in EPA making the  information available  to the  public
without further notice to you.

     Significant  reductions in  penalties  are given  for persons
voluntarily disclosing violations.   Note,  however, that continued
manufacture or importation  of  such  chemical  substances remains
illegal  even  after  you  have  contacted  the  Agency,  until  the
requirements of TSCA have been met.

-------
                              -  12  -

                    III.  WHEN YOU  MUST REPORT


     The  Inventory Update  Rule establishes  reporting periods
every four years.  The first reporting period was during 1986; the
second is during 1990.  A reporting period serves two functions:

     A)   It  is a  120-day  period during  which reports  for the
          Inventory Update Rule must be filed.

     B)   It  is used  to  determine  the  applicable fiscal year for
          calculating annual production volume.


A.  You must  report during the  120-dav reporting period.

     The  next reporting period  begins  August 25,  1990  and ends
December  23,  1990.  All submissions must  be  postmarked no  later
than December 23.  If you are required to report  (see section II.,
above),  failure  to file  your   report  during this  period  is  a
violation of  section  15  of TSCA.

     Persons  requesting searches of the Master Inventory File (see
section II.A.I. above) must make their  requests at least 60 days
prior to the  close of the reporting period.  If you have made your
request in time you will be allowed 15 business days from the date
of  receipt of  EPA's  answer  or until the  end of  the reporting
period, whichever  is later, to submit the report for the substance
which was  searched.   Any other  reports  received after the end of
the reporting period  will  be considered  late  and will be subject
to enforcement  action.

     The next reporting  period  after 1990 will be August 25, 1994
to December 23, 1994;  subsequent reporting will occur at four-year
intervals, beginning on August 25.  Each reporting period lasts 120
days.   EPA will publish reminder  notices  before  these reporting
periods begin.


B.   Determine  annual  production using the reporting  period as a
     reference  point.

     To determine whether you manufactured  or imported 10,000 Ibs.
or more of a reportable substance at a site,  you must determine
your total manufacture/import volume for your last corporate fiscal
year which  ends prior to August 25, 1990.  For example,  someone
whose fiscal year is the  calendar year would determine manufacture
or import  volume for the  period January  1, 1989  -  December 31,
1989, while someone whose  fiscal year is July 1 to June 30 would
determine manufacture or import volume for  the  period July 1, 1989
to June 30, 1990.

-------
                              - 13  -

     Note  that even though  you may be  exempt from  reporting a
chemical  substance  during  one  reporting  period  because  you
manufactured  or  imported  less  than  10,000  Ibs.  during  the
applicable fiscal year,  you may be required to  report it during
the next reporting period if during the next applicable fiscal year
the production volume increases to 10,000 Ibs. or more.

-------
                              - 14  -

                        IV.   HOW TO REPORT
A.  Form of submission.

     Information  reported  for the Inventory Update  Rule must be
submitted either  on Form U or by  magnetic  media (see subsection
C., below).  Separate forms are required for each plant site.

     For the 1990 reporting period, Form U has been made readable
by  Optical  Character  Recognition  (OCR) technology.   OCR  is an
electronic  data  entry  means that  will  help  ensure  that the
information  submitted  for the IUR will be  correctly and quickly
entered  into the  data  base.   In  OCR,  a light beam is passed  over
the paper, and the information on the page is 'recognized1 as text.
This  process requires  that  the text  be  typed  (or  written  very
clearly,  in capital letters), so  that the  machine  can properly
recognize the characters on the form.  The form  itself is printed
in a red  'drop-out1  color  that the OCR machine cannot see.


B.  Confidentiality.

     Information  submitted to EPA  under the  Inventory Update Rule
may  be  claimed as  confidential  business  information  (CBI), by
checking the appropriate "CBI" boxes on Form U.

     You  may assert a  CBI claim for  the  specific  identity  of  a
chemical  substance only if EPA treats that  substance identity as
confidential  on  the  Inventory  as of the  time your  report is
submitted  (i.e.,  the substance is  not on the public  Inventory).
Both confidential and  non-confidential substances may be reported
on  the same form, and confidential substances may be included in
computer tape  and  floppy  diskette  submissions (this is a change
from the 1986  reporting instructions).

     If  you are  manufacturing or  importing a chemical  substance
which  is currently  listed  on the Inventory as confidential  you are
encouraged  not to assert  confidentiality claims if  circumstances
are now  such that confidentiality  is no longer necessary.  If you
report a previously confidential substance as non-confidential (see
subsection C, below, for specific instructions) that substance will
subsequently be listed on  the Inventory as non-confidential.

     No  CBI claim  for  chemical  identity  will be accepted unless
accompanied by a separate written substantiation for  each chemical
substance  claimed  as  CBI, with detailed  answers to  the eleven
questions  prescribed in  section  710.38 of  the  Inventory Update
Rule,  and  repeated below.   The  answers  must  be  complete and
specific to the chemical substance  in question. The substantiation
must be  dated  and  signed by an  officer  of the company.  If the
required  substantiation does not accompany  your Form U, EPA may

-------
                              - 15 -

make the chemical identities reported on the form available to the
public without further notice to you.

     Information in a substantiation may itself be claimed as CBI
by  circling  or  bracketing  the  text  you  wish  to  claim  as
confidential and marking  the  page "CONFIDENTIAL."   Failure to so
mark this  information may  result in EPA making  the information
available to the public without further notice to you.

     The eleven questions  to be answered in the substantiation are:

     (1)  What harmful  effects to your  competitive  position,  if
any, do you think  would result from the identity of the chemical
substance being disclosed in connection with reporting under this
subpart?

     (2)  How long should confidential treatment be given?  Until
a  specific  date,   the   occurrence  of  a   specific  event,   or
permanently?  Why?

     (3)  Has the  chemical  substance been patented?   If so,  have
you granted  licenses to others with respect to  the  patent as it
applies to the chemical substance?   If the chemical substance has
been patented and  therefore disclosed  through  the  patent,  why
should it be treated as confidential?

     (4)  Has  the  identity of  the chemical substance  been  kept
confidential to the extent that your competitors  do not know it is
being manufactured or imported for a commercial purpose by anyone?

     (5)  Is  the  fact  that  the  chemical  substance  is  being
manufactured  or   imported  for   a   commercial  purpose  publicly
available, for example in technical journals, libraries, or State,
local, or Federal  agency  public files?

     (6)  What  measures  have  you  taken to  prevent  undesired
disclosure  of  the fact  that this  chemical  substance  is being
manufactured or imported  for  a commercial purpose?

     (7)  To what  extent has the fact that this chemical substance
is manufactured or imported for commercial purposes been revealed
to  others?   What  precautions have been taken  regarding these
disclosures?  Have there been public disclosures  or disclosures to
competitors?

     (8)  Does  this particular chemical substance leave the site
of manufacture  in  any  form,  as product,  effluent, emission, etc.?
If so, what measures have you taken to  guard against  discovery of
its identity?

     (9)  If the  chemical substance leaves the site  in a product
that  is available to the  public  or your competitors,  can the

-------
                              -  16  -

substance be identified by analysis of the product?

     (10) For  what  purpose  do  you  manufacture  or import  the
substance?

     (11) Has  EPA,  another Federal agency, or  any Federal court
made any pertinent confidentiality determinations regarding this
chemical  substance?    If  so,  please  attach  copies  of  such
determinations.


C.   Completing Form U.

     1.   Report only using original copies of Form U.

     Each copy of Form U bears an individual report number, and is
readable by optical character recognition (OCR) technology-  Do not
report on a photocopy of Form U,  because it will not have a unique
report number and will not be OCR-readable.  See section V, below,
for obtaining  copies of Form U.

     2.   Certification Statement.

     a.  Signature.  The certification statement must be signed by
an  officer  of   the   company  or  a  person   with  managerial
responsibility for  the plant  site reporting.    This  statement
certifies to the truth and accuracy  of the information reported
and of the  confidentiality claims  made on the form  (see the back
of Form  U for details) .   Note that by certifying the truth and
accuracy of  the  information on the form, you acknowledge that any
knowingly false  or misleading statement may be punishable by fine
or imprisonment  or both under applicable  law.  Sign in black pen
to ensure  that the form  bears a legible  signature  which can be
archived.

     b.  Date.   Enter the month, day,  and year that the form was
signed.

     c.  Name  and Title.   Enter the name  and title of the person
who signed the certification statement.
     3.   Technical Contact and Company Information.

     a.  Technical Contact Name.  Enter the name of the person whom
EPA may contact for clarification of the information  submitted on
Form U.  The technical contact need not be  located at  the site for
which  information  is  reported,  but should  be located in the U.S.
If  you wish  to identify more than  one  person as  a  technical
contact,  please include  the  extra name(s)  in  a separate  cover
letter.

-------
                              -  17  -


     b.   Company Name. Address  I. Address  II.   Use  these three
lines to enter the company name and street address of the technical
contact.    Post  office  box  numbers  are  acceptable  if  also
accompanied by a street address.

     c.   CBI.   Checking this box asserts a confidentiality claim
for  the link  between your  company  and the  chemical substances
reported  on the  form.   Checking other CBI boxes on the form will
not  protect  this  link.    If  there  are  some  substances  whose
connection  to your company  you do   not  require  to  be kept  as
confidential, report those substances on a separate form on which
the CBI box in Block II is not  checked.
     4.   Plant Site  Information.

     Reporting  under the  Inventory  Update  Rule  is  done  by
individual site.  Therefore all the substances reported on one form
must be manufactured/imported at the  same site.  Enter the name and
street address of that site and its Dun & Bradstreet  number here.

     a.  Dun & Bradstreet Number.  Dun  & Bradstreet gives separate
numbers  to  plant sites and parent companies;  make  sure that the
number you  provide EPA belongs  to the individual  plant site for
which you are reporting.   If  the plant site does not have a Dun &
Bradstreet  number, a Dun & Bradstreet number  assignment  can be
requested  from your  local office  of  Dun &  Bradstreet.   Dun &
Bradstreet does not charge for this  service, and does not require
that you disclose  sensitive financial  information in order to get
a number.

     b.  Address.   A street address, including Zip  code, must be
reported.  Post office box numbers are not acceptable.  If the site
does not have a street  address, please provide what descriptive
site information you  have,  including the Zip code.

     See block G, below,  concerning CBI claims for the link between
plant site identity and  individual substances.

     5.   Chemical  Substance  Identity/Activity/Confidentiality.

     a.  Line Number.  This part of the form is divided into ten
lines to allow reporting of up to ten chemical substances per form.
If the chemical identity will not fit on one line, you may use more
than one line to report  a single chemical substance.

-------
                            - 18 -


                         SAMPLE FORM*


             (Chemical Substance Information Only)
CHEMICAL SUBSTANCE IDENTITY/ACTIVITY/CONFIDENTIALITY ^
A. a Identifying Number
1
29735
H.SDecme Chemical Name
ID CODE
C. (Setback of form)
D.M1^ CBI
E. umn»d CBI 1
a n|
Production volume
F. In Pound! CBI
11.000 1 Ixl

_, Plant Chemical
G. C8I CBI
1— Nanthalenamine . 4— f ( 2-bromo— 4.6— dlnitro— nhenvllaznl— N— ethvl—
A. B. Identifying Number
2
52-8500145 1
H. Specific Chemical Name
C. (Sea tuck of form)
cn
P.1*?? CBI
_ Slta
E. Umttad CBI
cn n
Production volume
F. In Poundt CBI
24.000 1 1

. Plant Ctwnfcal
U CBI C8I
D H
1.2-Ethanediaminc. N-ethvl-N1 .N'-dimcthvl- 1
A. B. Identifying Number
3
1 33649773
H. Specific Chemical Name
ID CODE
C. (SMbeckol lorm)
O.'ffff CB.
_ Site
E.Umtod CBI
Production VokinM
F. In Poumta CBI
1 43.000 1 Ixt

„ Plant ClMmlul
G. CBI CBI
H D
1 1 .3— Prooanediaminium. N.N.N.N' .N1 .— nenta— methvl— N'— T3— f (tetramethvlnonvl^oxvlnroDvll—
A. a Identifying Number
4
i i
H. Specific Chemical Name
_ ID CODE
C. (Sea back ol form)
o.'syr CB.
CD D
Slta
E. Umttad CBI
n n
_ Production volume
F. In Pound! CBI
[ |

_ Plant Chemical
°-Q a
1 dichloride 1
A. a Identifying Number
5j
1 53437422
H. Specific Chemical Name
_ ID CODE
C. ISea back of form)
IX«ff CB.
E.Umted CBI
1 1 D
F. mPoundiUm* CBI
20,000 1 1

„ Plant Charnfcal
G CBI CBI
'B n
Benzenamine , 4-heptvl-N-phenvl
A. a Identifying Number
6
P-85-131 I
H. Specific Chemical Name
_ DCOOE
C. ISeibeekol form)
O-'SKfl CBI
E. Limited CBI
1 1 D
F. PraftpSmd»U™ CBI
67.000 1 Ixl

Q.W ""a-1
Ely 1
IA 1
2-Naphthalenecarboxvlic acid, 3-hvdroxv-4-f (2-methoxv-4-nitroDhenvl)azol-
A. a Identifying Number
7
T-85-35
H. Specific Chemical Name
_ ID CODE
C. (Seebjckof loon)
O.'ffyi CBI
|M| D
E.ujjjjtod CBI
_ Production Volume
F. In Pound! CBI
1 170,000 I I

_ Plant Chamleal
Gn a
Benzenamine, 4-heptyl-N-phenyl 1
A. a Identifying Number
8
5165-81-1
H. Specific Chemical Name
_ DCOOE
C. (SeibKkof form)
D."^ CBI
on n
EQB|
2-Naohth-o-ansidine . 4 ' -chloro-3-hvdroxv-5 ' -methvl-
A. a Identifying Number
9
14679997/21
H. Specific Chemical Nam*
C. (Seebeckot (omi)
D.*SW CB.
E. LMted CBI 1
Methacrylic acid, 2-ethvlbutvl ester
A. . a Identifying Number
10

H. Specific Chemical Name
_ DCOOE
C IS*, beck of term)
1 1
D.'ffff! CB.
i i n
E. Limit*) CBI
czi n
1
_ Production Volume
F. In Pound! CBI
1 93.000 Ixl

_ Plant Chemical
G. CBI CBI
D D

_ Production volume
F. In Pound! CBI
120.000 i n

_ Plant Chemical
G. CBI CBI
n n
1
Production volume
F. In Pound! CBI
1 1

_ Plant Chemical
G. CBI CBI
D D
-I
The substances on this sample form are listed as confidential
only for purposes of illustration.

-------
                              - 19  -

    _b.  CAS Registry or other Identifying Number (block B) .  Every
chemical substance reported  on Form  U  must be accompanied by its
Chemical Abstracts  Service (CAS)  Registry Number  (see line 8 of
sample form) or other identifying number.  The printed edition of
the Inventory contains detailed instructions on how to locate the
CAS Registry Number  for  a substance  listed  therein.    When you
report a CAS Registry Number, please verify that the number you are
reporting is the correct number for your substance.

     You may be unable to find a CAS  Registry Number in the public
Inventory either because  the substance is listed as confidential
(in which  case  the  specific  identity  is not  present   and  the
chemical  substance  has  an Accession  Number rather  than  a  CAS
Registry Number) or because the substance was not on the Inventory
as of the date  of  printing.   If this is the case you may use one
of the following identifying numbers:

     (1)  EPA Accession Number;
     (2)  Original Inventory Report Form Number;
     (3)  Premanufacture Notice Number;
     (4)  Bona Fide  Document Control Number; or
     (5)  Test Market Exemption Application Number.

Use one of the above identifying numbers only  if you cannot locate
the CAS Registry  Number  for  a substance  or you  are uncertain
whether the CAS Registry Number you have  located is correct.  The
CAS Registry  number is  the  preferred identifier  for  chemical
substances  reported.

     (1)  EPA Accession Number.  (See  line  1 of sample form.)  If
the  identity   of  a chemical substance  on  the  Inventory  is
confidential, the  printed  Inventory  lists an Accession Number for
that substance and  uses  a  generic  name rather than  a  specific
identity.  You may use an Accession Number as an identifying number
only if EPA has communicated the appropriate Accession Number to
you, e.g.,  following your report for the original Inventory in 1978
or  1979,  or following commencement of manufacture or import of a
substance   for  which you filed  a  premanufacture notification.
Because a generic  name can pertain to  more  than one substance, if
you use a generic chemical  identity in the printed Inventory to
determine what the Accession Number is you may possibly report for
the wrong substance.  An  Accession  Number  may not be used for a
non-confidential  chemical substance.  A typical Accession Number
would be  "29735".

     (2)   Original  Inventory  Report Number.    In  1978 and 1979,
submissions for the Initial and Revised TSCA Chemical  Substance
Inventories were filed on one of four forms, "A", "B",  "C", or "E".
You  may  use  an  original  Inventory  report  form  number  as  an
identifying number.   A typical Original Inventory Report Number
would be  "32345678".

-------
                              -  20  -

     Since both  "A" and  "B"  forms allowed reporting  of several
chemical  substances,  EPA needs  to know  the  line number  on the
original "A" or "B" form that the substance occupied.  If you use
an original Inventory report number from an "A"  or "B"  form  (these
form numbers begin with "1M or "2") you must therefore  include the
original line  number  for that chemical substance, separated from
the form number by  a slash.  For example, if a chemical substance
had been  reported on line number  3  of form 12345678,  report the
identification number as "12345678/3" (see line  9  on  sample  form).
If you originally  reported  on a  "C"  or "E" form (form numbers
beginning with "3" or "5") , do not include a slash or  a  line  number
(see line 3 on sample form).

     If you submitted a  correction to an original Inventory report,
use the number of the form on which you submitted the  correction.

      (3)   Premanufacture  Notification Number.     (See line 6  of
sample form.)   If  you  filed a Premanufacture Notification (PMN)
for a  substance which is now reportable under  the  Inventory  Update
Rule,  and that PMN  was  assigned a  PMN  number, you may  use that  as
an identifying number.   A typical  PMN  number would be  "P-85-243".

      Please  be aware that  a chemical  substance  which has a PMN
number is not  automatically  reportable under the  Inventory  Update
Rule;  a PMN substance is included on the Inventory only if a  Notice
of Commencement was received for the substance.

           (4)   Bona Fide Request Control Number.   (See line 2  of
sample form.)   If you filed a Bona Fide Intent to Manufacture  or
Import a chemical  substance which  is now reportable under the
Inventory Update Rule  (see  40  CFR §710.7(g)  or  §720.25(b)), you
may  use the document control  number assigned that submission  by
EPA as an identifying number. A typical Bona Fide document control
number would be  "52-8500287".

      The  fact  that  you  filed a  Bona Fide  for a  substance does not
necessarily  mean that  the  substance  is  on  the Inventory and
reportable;  you  must  have  independent  confirmation that  the
substance is on the Inventory (e.g. in a  communication from EPA).

           (5)  Test Market Exemption Application Number.  (See line
7  of  sample  form.)    If   you  filed  a  Test  Market Exemption
Application  (TMEA)  for  a substance which is now  reportable under
the  Inventory Update Rule,  the number assigned  by EPA  to that
application may be  used as an identifying number.  A typical TMEA
number would be  "T-85-27".   You should use a TMEA number only  if
you know that the chemical substance is on the Inventory  (e.g. the
Agency told you so  when you  submitted  the TMEA).

-------
                              -  21  -

     Procedures  for  obtaining CAS  Registry Numbers and Accession
Numbers from EPA when you previously  reported the substance to the
Agency.   If by  one of  the  methods  discussed in  section II.A.,
above,  you  were  able  to  determine  that  the  substances  you
manufacture  are  on the  Inventory,  you  should  already  have
identifying numbers  for them.  If you do  not know any of the above
identifying numbers  for a substance you are unlikely to be certain
that the  substance  is on the Inventory.   If this is the case you
should  reread section  II.A.   Following the procedures  in that
section should enable you to find  an identifying number.

     There may be some manufacturers  or importers who reported for
the  Inventory in 1978  or 1979  but  no  longer have  the original
report forms.  In this case you  must  request an identifying number
from EPA.  Send  a letter to  the following  address:

          Document  Processing Center   (TS-790)
          Office of  Toxic Substances
          U.S. Environmental Protection  Agency
          401 M  Street,  S.W.
          Washington,  DC 20460
          Room E-105
          ATTN:  Inventory Update Rule

     The  letter must include the specific identity of the chemical
substance, must  be  signed by an officer  of the company, and must
designate a  technical contact  (include name,  title, address, and
telephone number).   The structure  of the substance, if available,
should also be provided.  Note that this procedure can be used only
when you  have previously reported  the  substance to the Agency; if
you need  EPA to tell you whether the  substance  is on the Inventory
you must  follow  the procedures  in  section  II.A.1., above.

     Information on  this  letter  may   itself  be  claimed  as
confidential  by circling or  bracketing  the  text to be protected
and  marking the page  "CONFIDENTIAL."   Failure to  so  mark this
information may  result in EPA making the information available to
the public without  further notice  to you.

     EPA  will release information in  response to these letters only
to the company  which originally  submitted the  information.   If
company ownership has changed or the technical contact  authorized
to receive confidential information has changed since you  reported
the  substance  to  EPA  during  1978  - 1980,  you must  include  a
notarized letter by an  officer of the current surviving  chemical
company certifying  to the change and designating the new technical
contact.

      EPA  will send to the technical  contact a  CAS  Registry Number
 (if  the substance is listed as  non-confidential  on the  Inventory)
or an Accession Number  (if the  substance is confidential) .

-------
                              -  22  -

     EPA will release CAS Registry  Numbers or Accession Numbers in
response to these letters only for  substances which are reportable
under the Inventory Update Rule.  Your letter must be received by
November 12, 1990;  otherwise the Agency cannot guarantee a response
in time for you to meet your reporting obligations.

     c.  A.  B.  C.  F. P. or T Codes  (block  C) .   Indicate in this
block  the  type of identifying  number  contained in block  B,  as
follows:


If the number you  are                        Type this code
reporting in block B is a(n)                   in block C

Accession Number                                  A

Bona Fide Number                                  B

CAS Registry Number                               C

Original Inventory Report Number                  F

Premanufacture Notice  (PMN) Number                P

Test Market Exemption Application
     (THEA) Number                               T


     d.   Specific Chemical Name  (block H) .  Enter  the specific
chemical identity  of the  chemical substance you  are  reporting.
Chemical Abstracts Index  or  Preferred Names  should be  used  if
available.   For non-confidential substances,  these  names can be
found  in either the printed or the  computer-readable  version of
the public  Inventory.   If such  names are not  available, you must
use  nomenclature  which  completely and accurately  describes the
chemical substance.   If you need more than one  line to type the
chemical name,  continue the name  in block  H on the line below;
leave the rest of  the blocks on the second line blank.

     Trade  names  may  not  be  used  except  where  a trade  name
describes a reactant which is part of the identity of a chemical
substance you are  reporting,  and your supplier will not disclose
to you the  specific  identity  of the  trade name reactant.  Report
all  such chemical substances  on  a  separate  form,  entering the
specific identities of reactants where you know them  and the trade
names where you do not.  You must also submit along with Form U a
letter certifying that your supplier will not disclose to you the
specific identity  of the trade  name  reactant  and identifying the
supplier of each trade name reactant reported.

     Information in this letter may be claimed as confidential by
circling or bracketing the text to be  protected and marking the

-------
                              - 23  -

page,  "CONFIDENTIAL."   Failure  to so mark this  information may
result  in EPA  making  the  information available  to  the public
without further notice  to you.

     If you are an importer whose foreign  supplier will not reveal
to you the identity of the substance you are reporting, follow the
procedures in subsection H., below.

     If you  are claiming the  chemical  identity as confidential,
check the Chemical CBI  box  in block G.

     e.   Activity;   Manufacture  or Import  (block  D) .    If you
manufacture the substance,  enter "M"  in the space next to the CBI
box;  enter  "I"  if  you  import  the  substance.     If  you  both
manufacture  and import the substance at  the same site,  use two
lines to report, one for each activity.   Check the CBI box if you
wish to  claim the nature of  the activity (i.e.,  manufacture vs.
importation) as confidential for the substance.  Claiming activity
as  CBI does not  protect the  link between your company  and the
substance; that will not be protected unless you check the CBI box
next to Company Name.

     f.  Site Limited (block El .   If you  manufacture  the chemical
substance  at the plant site  identified  in Block III and do not
distribute the  chemical substance  or any mixture containing that
substance outside the plant site for commercial purposes, enter "X"
in the space next to the CBI box.  Otherwise leave the  space blank.
(Note:  an imported chemical substance cannot  be reported as site-
limited.)  If you wish to claim this information as  confidential
for the substance, check the CBI box.  You may claim the fact that
a substance  is not site-limited as confidential, if appropriate.

     g.    Production   Volume   (block F).    Enter   your  annual
manufacture volume or importing volume, in pounds, for the fiscal
year preceding the reporting period.  If you both manufacture and
import a  particular  substance,  report the manufacture and import
volumes separately, on two lines.  The quantity  should be reported
to at least two significant figures,  and should  be accurate to the
extent known or reasonably ascertainable by you  (if the figure
reported is within ±10% of  the actual value, it is acceptable for
purposes  of  the rule) .   Production volumes must be  reported in
numeric format ("2 million" is not acceptable).  Abbreviations such
as M or K are not acceptable, and  scientific notation may be used
only if  the  number would not  otherwise fit in  the box provided.
(Volumes reported  in other than numeric  format  cannot be read by
the  Agency's automated equipment.)   If  you  wish to claim this
information as confidential for this substance,  check  the CBI box.

     h.  Plant site and Chemical CBI  Claims (block G).

     (1)  Plant site CBI claim.  If it is  confidential as to which
of your plant sites manufactures/imports  the substance, check the

-------
                              -  24  -

"Plant CBI11 box.  Note  that  you may  claim this connection as CBI
for  some chemical  substances while  not making  that  claim for
others.
                *
     (2)  Chemical identity CBI  claim.  The identity of a substance
which is listed  as confidential  on the  TSCA Inventory  may be
claimed as confidential by checking this box.  EPA will not honor
a chemical identity CBI claim for  a  substance which is listed on
the non-confidential Inventory.   Note that checking this box does
not protect  the link between your company  and the substance; it
only  asserts  a  CBI claim   for  the  specific  identity   of  the
substance.  If you wish  to claim company identity as CBI, check the
CBI box next to Company Name.

D.  Reporting by  computer tape or  floppy diskette.

     1.   General.

     In  1986 submitters  were offered  the option  of submitting
reports  on computer tape.    In  1990  the option  has  expanded to
include  floppy  diskettes.  Two restrictions which were applicable
in  1986  no longer apply:   1) there is no longer  a minimum number
of   chemical   substances   required  before   you   can   report
electronically;  and 2)  substances whose specific identities are
confidential may  now be reported electronically.

      2.  Copies  of Form U required.

      The tape or floppy diskette must be accompanied by a  separate
copy of  Form U  for  each plant site reported.   On  the  written form
complete only  the  technical  contact  and  company  information
described  on page 17.   The  remainder  for the form should not be
filled  in.   In  its place include a  statement that the  required
information   is  being   submitted  on  tape   or  diskette,   plus
tape/diskette   identifier  information   (this   should match the
information on  the  label affixed to the  tape/diskette).

      3.   Tape/diskette formats and physical  characteristics.

       See  document  entitled  Inventory  Update  Magnetic  Media
Instructions  (available from EPA;  see page  30).

      4.  Information on individual chemical substances.

      See  instructions  for  completing  Block  IV  in  section C.,
above.
E.  Sending  forms and tapes or floppy diskettes to EPA.

      Send the original form,  along with any accompanying tapes or
floppy diskettes, to the  following  address:

-------
                              - 25  -
           Document Processing Center  (TS-790)
           Office of Toxic Substances
           U.S. Environmental Protection Agency
           401 M Street, S.W.
           Washington, DC  20460
           Room E-105
           ATTN: Inventory Update Rule

      If you wish acknowledgement from EPA of receipt of your forms
and tapes/floppies,  you must include a cover  letter  listing the
enclosed form numbers, as well as any tape reel  numbers or diskette
identifiers, along with  a request for acknowledgement.

F.  Correcting errors  in submissions for the original Inventory.

      In reporting  under the Inventory Update Rule you may find
that an error was made when you reported for the original Inventory
in 1978  or  1979.   If  that error falls  into one  of the following
categories:

      1.   the chemical identity originally reported was incomplete
           or inaccurate;

      2.   an   isolated  intermediate   occurring  during   the
           manufacture of a  substance previously reported for the
           Inventory  was not then recognized; or

      3.   EPA  informed your  company of  a reporting  error and
           requested  a correction  from you, to which you did not
           respond;

you should file an  Inventory Correction, following  the procedures
outlined in  the Federal Register notice of July 29,  1980 (45 FR
50544).  Be  sure to reference the original Inventory report form
and line number  (if appropriate) when you file a correction.

     For  copies  of   the  Federal  Register  notice  or  further
assistance with an  Inventory Correction, you may contact:

           Document Processing  Center   (TS-790)
           Office of  Toxic Substances
           U.S. Environmental Protection Agency
           401 M Street, S.W.
           Washington,  DC  20460
           Room E-105
           ATTN: Inventory Update Rule
           Telephone:   202-382-3527

      Inventory  Correction  requests  should be  filed  with your
copies of  Form U.   Note that Form U  should report the chemical
substance you  are actually manufacturing or importing and should

-------
                              - 26  -

reference the number of the correction form you submit.

     The act of  correcting errors  in submissions to the Original
Inventory  does  not  grant  to the person making  the correction
immunity from  enforcement action  for any possible violations of
the Original Inventory Reporting Rule.

G.  Recordkeepinq requirements.

      Persons subject to the Inventory Update Rule are required to
maintain records that document the information contained in their
submissions.  These records must be  kept  for  four years after  the
end of the applicable reporting period.  As long as the records  are
maintained  in  a manner consistent with normal business practice,
you may determine their  exact format.   Required  records  include
those  that  show the  production   volume,  plant  site,  and site-
limited status  of each substance reported.   If a  substance is  not
reported because its  site-specific annual production  is less than
10,000  pounds,  only the  site-specific production  records for that
substance  need to be kept.   Persons who qualify  as  exempt small
manufacturers   need  to  keep  records  only  for  those  chemical
substances  which they are required to report; however, in claiming
an exemption they bear the burden of documenting that  they  qualify
for the exemption.

H.  Special instructions for  importers and  foreign suppliers.

      This   section  applies  to  importers  who do not  know  the
specific  chemical  identity of a  substance  because  the  foreign
supplier  chooses to  keep it  confidential.   If  you  are   such an
importer,   you  are   still responsible   for ensuring that   the
information is submitted to EPA.  You may accomplish this by having
your foreign supplier complete some  of the  information on  Form U,
as follows:

      1.    Include  a cover letter with  your submission,   stating
            the  following:  "The identifying numbers  and specific
            chemical identities for the substances on this form  and
            the  technical contact will be  submitted by our  foreign
            supplier."

      2.    Use a separate Form U for  each foreign supplier who does
            not   inform   you  of  the identity  of the  chemical
            substances you are importing.   Do not report by computer
            tape or  floppy diskette.   Do  not use the  same report
            form for substances whose specific  identities  you do
            know.

      3.    Make a photocopy of a blank Form U before  entering  any
            information on the form.

      4.    On the original copy, sign the certification statement,

-------
                             - 27 -

           enter the technical contact and company information and
           plant site information, and complete blocks D, E, F, and
           G for each chemical substance. In block  B,  instead of
           entering the identifying number, enter the  trade name
           or other  designation  by  which you know  each  chemical
           substance.  Leave block C blank.  Check  the "Chemical
           CBI" box  in block H  only if you wish  to claim  the
           identities of the chemicals identified on the  form as
           confidential  (you  must  answer  the   substantiation
           questions  in subsection  B.,   above).    Your  foreign
           supplier  is  responsible  for his  own CBI  claim.   Send
           this copy to EPA.

      5.    On the photocopy of the blank form, enter  only the plant
           site  information.    Send this  copy to  your  foreign
           supplier.

      6.    The  foreign  supplier  should  enter  technical  contact-
           company information on his copy (the technical contact
           here should  be  the foreign  supplier),  complete blocks
           B and  C,  and enter the  appropriate  specific  chemical
           identities in block H.   Make sure  that  your  supplier
           understands which chemical identities belong with each
           line number on Form U.  If the foreign supplier wishes
           to claim  the chemical identities  as confidential,  the
           supplier  should  check the "Confidential" box in column
           d and submit  a substantiation as described in subsection
           B.,  above.   The supplier should  include  with  Form U a
           letter stating that this  information is being submitted
           by  a  foreign  supplier   on   behalf  of  an  importer.
           Information in the letter may be claimed as confidential
           by circling or bracketing the text to be protected and
           marking the  page,  "CONFIDENTIAL."   Failure  to so mark
           this   information  may  result  in  EPA  making  the
           information  available to the public without  further
           notice to the supplier.  The supplier should then send
           the  form  and letter to EPA.

      Note  that it  is  your responsibility  to ensure that your
foreign supplier  understands  how to complete his copy of Form U
(including any  relevant CBI claims) and that  the  supplier sends
the information to EPA by the end of the  reporting period.  If the
supplier fails to submit the information,  your company may be found
to be in violation of TSCA.

-------
                              - 28  -

  V.  OBTAINING COPIES OF DOCUMENTS CITED IN THESE INSTRUCTIONS


A.  Obtaining copies of TSCA regulations.

      Copies of TSCA regulations can be obtained by contacting:

      Environmental Assistance Division  (TS-799)
      Office of Toxic Substances
      Environmental Protection Agency
      Rm. E-543B
      401 M St.,  SW.
      Washington,  D.C.  20460
       (202) 554-1404
      TDD:   (202)  554-0551

B.  Obtaining copies of the Inventory.

       1.    Obtaining  copies  of  the  printed  editions  of  the
Inventory.  Non-confidential Inventory listing can be found in TSCA
Chemical  Substance Inventory;   1985 Edition.  a complete  version
of  the  non-confidential Inventory  current as of July  1985,  and in
TSCA  Chemical Substance Inventory;  1990 Supplement,  a  supplement
to  the  1985 edition current as of February 1,  1990.  Copies may be
purchased from:

           Superintendent of  Documents
           Government Printing Office
           Washington, D.C.   20402
           Order  Desk:   (202)  783-3238

      The price for the 1985  edition  is  $161.00 in the U.S.  and
Canada,  $201.25 elsewhere;  the price  for the  1990 supplement  is
$15.00  in the U.S., and  $18.75 outside the U.S.   GPO will  also
accept  orders  by telephone;   MasterCard  and Visa  are  accepted.
Refer to stock number 055-000-00254-1  for  the 1985 edition,  and
055-000-00361-1 for  the  1990  supplement.   Please allow  4-6  weeks
for delivery  (longer outside the U.S.).

      2.  Obtaining the Inventory  in computer-readable  form.   The
Inventory is  available  in the form of three computer tapes.   The
first tape  lists  the  chemical  substances  by their Chemical
Abstracts  Service  (CAS)  Registry Numbers,  Index or  Preferred
chemical  names,  and where  appropriate, molecular  formulas.   An
alphabetical  listing of chemical  synonyms  for the substances  is
also  included,   as are  "XU"  flags for  substances  exempt  from
reporting under the Inventory  Update Rule (see section  II.B.2.a.,
above).   The listed synonyms  include  only  those reported to  EPA
for these substances  (in contrast  to the printed Inventory,  which
also  includes synonyms derived from CAS files).   The tape contains
neither generic names nor Accession Numbers  for substances  with
confidential identities.

-------
                              - 29  -


      The second tape contains plant site names and addresses and
Manufacturer  Identification Numbers.   The  third  tape  contains
submitter identity information and production and import statistics
(from 1977  only).   No confidential information appears on any of
these tapes.   Copies of the documentation for the computer tapes
are  included with  the  tapes.   Each of  the three tapes  may be
ordered separately.

     Ordering  information  for these  tapes  may  be  obtained by
contacting:

            National Technical  Information Service
            5285  Port Royal  Road
            Springfield,  VA   22161
            Telephone:   (703)  487-4650

C.   Obtaining  copies of Form U.

      Copies of  Form U  may  be  obtained from:

            Document Processing Center   (TS-790)
            Office  of Toxic  Substances
            U.S.  Environmental  Protection  Agency
            401 M Street, S.W.
            Washington,  DC  20460
            Room  E-105
            ATTN: Inventory  Update  Rule
            Telephone:  (703)  534-1050

-------
                              - 30  -

             VI.  REQUESTING ASSISTANCE IN REPORTING


      Should you need information on or assistance in the following
areas:

      o    determining your reporting obligations;

      o    the mechanics of completing Form U;

      o    reporting by computer tape or floppy diskette; or

      o    determining the status of  forms/tapes/floppies you have
           submitted to EPA;

you may write to or call the  following address:

           Document Processing Center  (TS-790)
           Office of Toxic Substances
           U.S. Environmental Protection Agency
           401 M Street, S.W.
           Washington, DC  20460
           Room E-105
           ATTN: Inventory Update  Rule
           Telephone:  202-382-3591

-------
                                    APPENDIX
                        CHEMICAL  SUBSTANCES  SUBJECT TO
                   PROPOSED OR FINAL TSCA RULES OR ORDERS
    Following is  a list of  CAS Registry Numbers  (for non-confidential
    chemical  substances)   or  Accession  Numbers  (for  confidential
    substances) of substances which are  subject  to  proposed  or final
    rules or orders under TSCA sections 4, 5(a)(2),  5(b)(4),  5(e), 6,
    and  7, as of  February 1990 (see  sections 710.26  and 710.29 of the
    rule and pages 6  and 8 in these reporting instructions).   If after
    consulting this list you are  uncertain as to the regulatory status
    of a chemical substance,  contact EPA at the  address given on page
    30 of these reporting instructions).
 CAB
9O-OO-O
51-79-6
54-11-5
                K*gul*
                Ond«r TSCA
                SactlonCmi
                              CAS
                    TSCA
89-63-4
92-B2-4
92-66-O
62-44-2
62-53-3
67-63-O
92-86-4
94-58-6
94-75-7
7O-3O-4
71-55-6
72-2O-8

72-57-1
74-87-3
74-93-1
75-38-7
75-44-5
75-56-9
94-82-6
95-48-7
95-50-1
95-51-2
95-B4-S
95-63-6
95-69-2
95-7O-5
95-76-1

95-77-2
95-8O-7
95-82-9

95-83-O
95-94-3
95-95-4
                 4/5(a)(2)
                             96-23-1
                             96-29-7
                             96-37-7
                             97-O2-9
                             97-63-2
                             98-82-8
                             98-86-2
                             98-87-3
                             98-95-3

                             99-09-2
                             99-28-5
                             99-29-6
                 4/S<*)<2)
99-3O-9
99-56-9
1OO-O1-6

100-O2-7
1O1-5S-3
101-77-9

103-85-5
1O4-76-7
1O6-4O-1
                  S(a)(2)
                       4
                       4
1O6-44-S
1O6-46-7
1O6-47-8
                                             tequli
                                             Under
                                                 MCA
                  5(a)(2)
                      4
                      4
1O8-31-6
108-39-4
1O8-42-9
122-O9-8
122-6O-1
123-31-9

-------
Appendix,  Page  2
Dn<2)
4
4
5(2)
                            5<2)
                                  4
                                                   4
                                                   4
                                              5(a)(2)
29091-20-1
29761-21-5
32534-S1-9
                                     2113-57-7
                                     2136-89-2
                                     2238-07-5
                                                                5<
                                                 >(2)
                                                    4
                                                    4
32536-52-O
34621-99-3
363S5-01-8
                                                                                                           5<
   s<«
  a><2
                                                                                                                2)
                                     2425-79-8
                                     2426-O8-6
                                     2432-99-7
                                                    4
                                                    4
                                              B(a)(2)
37853-59-1
37853-61-5
38954-75-5
                                     2461-18-9
                                     2528-36-1
                                     2577-72-2
                                                             39156-41-7
                                                             41137-6 O-4
                                                             42389-3O-O
                                     2687-25-4
                                     2716-10-1
                                     2716-12-3
                                                             47758-37-2
                                                             51160-97-5
                                                             51363-64-6
                                     3O83-2S-8
                                     3132-64-7
                                     3236-71-3
                                              S(a)(2)
                                              5(a)<2)
                                                 5<«0
                                     3288-58-2
                                     3389-71-7
                                     3531-19-9
                                              5(a)(2)
52277-33-5
5S2O5-38-4
568O3-37-3

58965-66-5
6O466-61-7
61167-6O-O
5<2)
      4
      4
                                                                                                              *<•)
                                     3618-72-2
                                     3648-2O-2
                                     3663-23-8
                                     3689-24-5
                                     3772-94-9
                                     4016-11-9

                                     4O16-14-2
                                     4162-45-2
                                     417O-3O-3
                                                             62654-17-5
                                                             65879-44-9
                                                             65992-66-7

                                                             66422-95-5
                                                             67801-06-3
                                                             68O15-98-5

                                                             68239-8O-5
                                                             68239-82-7
                                                             68239-83-8
                                 4
                                 4
                            5
-------
      Appendix,  Page  3
  CAS
                         Xaoulatad
                         Ondar TSCA
                         Saeticn<«>
                  Aocaaalon
                                           Baoulatad
                                           Undar TSCA
                                                             Accaaalon
                                                                   Kaqulatad
                                                                   Undar TSCA
                                                                   Saofeionfal
116671-32-0
118270-87-4
119275-S3-S
119438-11-8
12B3O4-11-2
125*97-20-8
AoeaMlon
3O3O9
38585
41259
42741
43313
43993
44292
49435
49457
50567
52381
52676
53215
53862
55904
                               5<«O
Und«r TSCA
8*crtlon<«>
   5(a)(2)
      S(a)
   5(a)(2)
   S(a)(2)
   5(a)(2)
   S(a)(2)
   S(a)(2)
   S(a)(2)
   5(a)(2)
   5(a)(2)
   5(a)(2)
   5(a)(2)
   5(a)(2)
   »(a)(2)
                  56236
                  57397
                  58834

                  59531
                  59622
                  60787
                                           62283
                                           62625
                                           62705
                                           65599
                                           66387
                                           66616
67993
681O1
71546

72414
72S5O
72721
76972
77511
77668
77759
77873
779»7
                           5(a)(2)
                           5(a)(2)
                           5(a)(2)
                           B(a)(2)
                           5(a)(2)
                                              5(a)(2)
                                              B(a)(2)
                                              5(a)(2)
                                              5(a)(2)
                                              5>
                               5
                                           5(*>
                                                                                           5(a)
                                                                         5(a)


                                                                         5(a)
5(a)
5(a)
B(a)

-------