[Federal Register Volume 90, Number 135 (Thursday, July 17, 2025)]
[Rules and Regulations]
[Pages 33283-33299]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2025-13363]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 721

[EPA-HQ-OPPT-2024-0079; FRL-12386-02-OCSPP]
RIN 2070-AB27


Significant New Use Rules on Certain Chemical Substances (24-
3.5e)

AGENCY: Environmental Protection Agency (EPA).

ACTION: Final rule.

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SUMMARY: EPA is issuing significant new use rules (SNURs) under the 
Toxic Substances Control Act (TSCA) for certain chemical substances 
that were the subject of premanufacture notices (PMNs) and are also 
subject to an Order issued by EPA pursuant to TSCA. The SNURs require 
persons to notify EPA at least 90 days before commencing the 
manufacture (defined by statute to include import) or processing of any 
of these chemical substances for an activity that is designated as a 
significant new use in the SNUR. The required notification initiates 
EPA's evaluation of the conditions of that use for that chemical 
substance. In addition, the manufacture or processing for the 
significant new use may not commence until EPA has conducted a review 
of the required notification; made an appropriate determination 
regarding that notification; and taken such actions as required by that 
determination.

DATES: This rule is effective on September 15, 2025. For purposes of 
judicial review, this rule shall be promulgated at 1 p.m. (EST) on July 
31, 2025.

ADDRESSES: The docket for this action, identified under docket 
identification (ID) number EPA-HQ-OPPT-2024-0079, is available online 
at https://www.regulations.gov or in person at the Office of Pollution 
Prevention and Toxics Docket (OPPT Docket) in the Environmental 
Protection Agency Docket Center (EPA/DC). Please review the visitor 
instructions and additional information about the docket available at 
https://www.epa.gov/dockets.

FOR FURTHER INFORMATION CONTACT: 
    For technical information: Jordan Garbin, New Chemicals Division 
(7405M), Office of Pollution Prevention and Toxics, Environmental 
Protection Agency, 1200 Pennsylvania Ave. NW, Washington, DC 20460-
0001; telephone number: (202) 564-4156; email address: 
[email protected].
    For general information on SNURs: William Wysong, New Chemicals 
Division (7405M), Office of Pollution Prevention and Toxics, 
Environmental Protection Agency, 1200 Pennsylvania Ave. NW, Washington, 
DC 20460-0001; telephone number: (202) 564-4163; email address: 
[email protected].
    For general information on TSCA: The TSCA-Hotline, ABVI-Goodwill, 
422 South Clinton Ave., Rochester, NY 14620; telephone number: (202) 
554-1404; email address: [email protected].

SUPPLEMENTARY INFORMATION:

I. Executive Summary

A. What is the Agency's authority for taking this action?

    TSCA section 5(a)(2) (15 U.S.C. 2604(a)(2)) authorizes EPA to 
determine that a use of a chemical substance is a ``significant new 
use.'' EPA must make this determination by rule after considering all 
relevant factors, including the factors in TSCA section 5(a)(2).

B. What action is the Agency taking?

    EPA is finalizing SNURs under TSCA section 5(a)(2) for the chemical 
substances identified in this document. These chemical substances were 
the

[[Page 33284]]

subject of PMNs and are also subject to an Order issued by EPA pursuant 
to TSCA section 5(e)(1)(A), as required by the determinations made 
under TSCA section 5(a)(3)(B). The SNURs identify as significant new 
uses any manufacturing, processing, use, distribution in commerce, or 
disposal that does not conform to the restrictions imposed by the 
underlying TSCA Orders, consistent with TSCA section 5(f)(4). The SNURs 
require persons who intend to manufacture or process any of these 
chemical substances for an activity that is designated as a significant 
new use in the SNURs to notify EPA at least 90 days before commencing 
that activity.
    Previously, EPA proposed SNURs for these chemical substances in the 
Federal Register of December 17, 2024 (89 FR 102046 (FRL-12386-01-
OCSPP)). The docket includes information considered by the Agency in 
developing the proposed and final rules, including public comments and 
EPA's responses to the comments received as discussed in Unit II.D.

C. Does this action apply to me?

1. General Applicability
    This action applies to you if you manufacture, process, or use the 
chemical substances identified in this document. The following list of 
North American Industrial Classification System (NAICS) codes is not 
intended to be exhaustive, but rather provides a guide to help readers 
determine whether this document applies to them. Potentially affected 
entities may include:
     Manufacturers or processors of one or more subject 
chemical substances (NAICS codes 325 and 324110), e.g., chemical 
manufacturing and petroleum refineries.
2. Applicability to Importers and Exporters
    This action may also apply to certain entities through pre-existing 
import certification and export notification requirements under TSCA 
(https://www.epa.gov/tsca-import-export-requirements).
    Chemical importers are subject to TSCA section 13 (15 U.S.C. 2612), 
the requirements in 19 CFR 12.118 through 12.127, 19 CFR 127.28, and 40 
CFR part 707, subpart B. Importers of chemical substances in bulk form, 
as part of a mixture, or as part of an article (if required by rule) 
must certify that the shipment of the chemical substance complies with 
all applicable rules and orders under TSCA, including regulations 
issued under TSCA sections 5, 6, 7 and Title IV.
    Pursuant to 40 CFR 721.20, any persons who export or intend to 
export a chemical substance identified in this document are subject to 
the export notification provisions of TSCA section 12(b) (15 U.S.C. 
2611(b)) and must comply with the export notification requirements in 
40 CFR part 707, subpart D.

D. What are the incremental economic impacts of this action?

    EPA has evaluated the potential costs of establishing SNUN 
reporting requirements for potential manufacturers and processors of 
the chemical substances identified in this document. This analysis, 
which is available in the docket, is briefly summarized here.
1. Estimated Costs for SNUN Submissions
    A SNUR requires that any person who intends to engage in such 
activity in the future must first notify EPA by submitting a SNUN. If a 
SNUN is submitted, costs are an estimated $45,000 per SNUN submission 
for large business submitters and $14,500 for small business 
submitters. These estimates include the cost to prepare and submit the 
SNUN (including registration for EPA's Central Data Exchange (CDX)), 
and the payment of a user fee. Businesses that submit a SNUN would be 
subject to either a $37,000 user fee required by 40 CFR 
700.45(c)(2)(ii) and (d), or, if they are a small business as defined 
at 13 CFR 121.201, a reduced user fee of $6,480 (40 CFR 
700.45(c)(1)(ii) and (d)). These estimates reflect the costs and fees 
as they are known at the time of this rulemaking.
2. Estimated Costs for Export Notifications
    EPA has also evaluated the potential costs associated with the pre-
existing export notification requirements under TSCA section 12(b) and 
the implementing regulations at 40 CFR part 707, subpart D. For persons 
exporting a substance that is the subject of a SNUR, a one-time notice 
to EPA must be provided for the first export or intended export to a 
particular country. The total costs of export notification will vary by 
chemical, depending on the number of required notifications (i.e., the 
number of countries to which the chemical is exported). While EPA is 
unable to make any estimate of the likely number of export 
notifications for the chemical substances covered by these SNURs, as 
stated in the accompanying economic analysis, the estimated cost of the 
export notification requirement on a per unit basis is approximately 
$106.

II. Background

A. General Information About SNURs

    Unit II. of the proposed rule provides general information about 
SNURs, and additional information about EPA's new chemical program is 
available at https://www.epa.gov/reviewing-new-chemicals-under-toxic-substances-control-act-tsca.

B. Applicability of the Significant New Use Designation

    To establish a significant new use, EPA must determine that the use 
is not ongoing. As discussed in Unit II.E. of the proposed rule, EPA 
concluded that the proposed significant new uses were not ongoing. If 
EPA subsequently determines that such a use was ongoing as of the date 
of publication of the proposed rule and did not cease prior to issuance 
of the final rule, EPA will not designate that use as a significant new 
use in the final rule. EPA has no information to suggest that any of 
the significant new uses identified in this rule meet this criterion.
    As discussed in the Federal Register of April 24, 1990 (55 FR 17376 
(FRL-3658-5)), EPA believes that the intent of TSCA section 5(a)(1)(B) 
is best served by designating a use as a significant new use as of the 
date of publication of the proposed rule rather than as of the 
effective date of the final rule. The objective of EPA's approach is to 
ensure that a person cannot impede finalization of a SNUR by initiating 
a significant new use after publication of the proposed rule but before 
the effective date of the final rule. Uses arising after the 
publication of the proposed rule are distinguished from uses that are 
identified in the final rule as having been ongoing on the date of 
publication of the proposed rule. The former would be new uses, the 
latter ongoing uses, except that uses that are identified as ongoing as 
of the publication of the proposed rule would not be considered ongoing 
uses if they have ceased by the date of issuance of a final rule.
    In the unlikely event that before a final rule becomes effective a 
person begins commercial manufacturing (including importing) or 
processing of the chemical substances for a use that is designated as a 
significant new use in that final rule, such a person would have to 
cease any such activity upon the effective date of the final rule. To 
resume their activities, these persons would have to first comply with 
all applicable SNUR notification requirements and wait until all TSCA

[[Page 33285]]

prerequisites for the commencement of manufacture or processing have 
been satisfied.
    Issuance of a SNUR for a chemical substance does not signify that 
the chemical substance is listed on the TSCA Chemical Substance 
Inventory (TSCA Inventory). Guidance on how to determine if a chemical 
substance is on the TSCA Inventory is available on the internet at 
https://www.epa.gov/tsca-inventory.

C. Important Information About SNUN Submissions

1. SNUN Submissions
    SNUNs must be submitted on EPA Form No. 7710-25, generated using e-
PMN software, and submitted to the Agency in accordance with the 
procedures set forth in 40 CFR 720.40 and 721.25. E-PMN software is 
available electronically at https://www.epa.gov/reviewing-new-chemicals-under-toxic-substances-control-act-tsca.
2. Development and Submission of Information
    EPA recognizes that TSCA section 5 does not require development of 
any particular new information (e.g., generating test data) before 
submission of a SNUN. There is an exception: If a person is required to 
submit information for a chemical substance pursuant to a rule, order 
or consent agreement under TSCA section 4, then TSCA section 5(b)(1)(A) 
requires such information to be submitted to EPA at the time of 
submission of the SNUN.
    In the absence of a rule, TSCA order, or consent agreement under 
TSCA section 4 covering the chemical substance, persons are required 
only to submit information in their possession or control and to 
describe any other information known to or reasonably ascertainable by 
them (see 40 CFR 720.50). However, upon review of PMNs and SNUNs, the 
Agency has the authority to require appropriate testing. To assist with 
EPA's analysis of the SNUN, submitters are encouraged, but not 
required, to provide the potentially useful information as identified 
for the chemical substance in Unit III.C. of the proposed rule.
    EPA strongly encourages persons, before performing any testing, to 
consult with the Agency pertaining to protocol selection. Furthermore, 
pursuant to TSCA section 4(h), which pertains to reduction of testing 
in vertebrate animals, EPA encourages consultation with the Agency on 
the use of alternative test methods and strategies (also called New 
Approach Methodologies, or NAMs), if available, to generate the 
recommended test data. EPA encourages dialog with Agency 
representatives to help determine how best the submitter can meet both 
the data needs and the objective of TSCA section 4(h). For more 
information on alternative test methods and strategies to reduce 
vertebrate animal testing, visit https://www.epa.gov/assessing-and-managing-chemicals-under-tsca/alternative-test-methods-and-strategies-reduce.
    The potentially useful information described in Unit III. of the 
proposed rule may not be the only means of providing information to 
evaluate the chemical substance associated with the significant new 
uses. However, submitting a SNUN without any test data may increase the 
likelihood that EPA will take action under TSCA sections 5(e) or 5(f). 
EPA recommends that potential SNUN submitters contact EPA early enough 
so that they will be able to conduct the appropriate tests.
    SNUN submitters should be aware that EPA will be better able to 
evaluate SNUNs which provide detailed information about human exposure 
and environmental release that may result from the significant new use 
of the chemical substances.

D. Public Comments on Proposed Rule and EPA Responses

    EPA received public comments on the proposed SNURs and prepared a 
Response to Comment document that provides the Agency responses. The 
comments and the Response to Comment document are available in the 
docket. As described in the Response to Comment document, EPA is 
finalizing these SNURs with the following changes (listed by PMN Number 
and proposed 40 CFR citation):
     For P-23-37 (40 CFR 721.12069), P-23-44 (40 CFR 
721.12070), P-23-80 (40 CFR 721.12071), P-23-93 (40 CFR 721.12072), and 
P-23-172 (40 CFR 721.12076), EPA incorporated the requirements of 40 
CFR 721.72(e) to include a de minimis provision of 1.0% for consistency 
with the underlying Orders for these substances. EPA also corrected the 
significant new use regarding the manner in which the substance is 
imported. The significant new use now reads ``It is a significant new 
use to import the substance other than in solution, unless in sealed 
containers weighing 5 kilograms or less.''
    In addition to the changes to respond to comments, EPA identified 
the need to revise the following proposed SNURs (listed by PMN Number 
and proposed 40 CFR citation):
     For P-21-170 (40 CFR 721.12048), EPA addressed an 
inadvertent omission in the industrial, commercial, and consumer 
activities paragraph of the regulatory text by including processing for 
use or use of the substance where the concentration of the substance in 
the final product exceeds 0.008% as a significant new use. In the 
Federal Register of December 17, 2024 (89 FR 102051), EPA proposed to 
designate this use as a significant new use, but inadvertently omitted 
it from the proposed regulatory text appearing on page 102064.
     For P-21-170 (40 CFR 721.12048), P-22-58 (40 CFR 
721.12058), P-22-75 (40 CFR 721.12059), P-22-78 (40 CFR 721.12060), P-
23-36 (40 CFR 721.12068), and P-23-64 (40 CFR 721.12073), EPA made 
minor edits to the language in the industrial, commercial, and consumer 
activities paragraph to be consistent with previous SNURs that had 
similar requirements.
     For P-18-325 (40 CFR 721.12044), P-21-170 (40 CFR 
721.12048), P-21-184 (40 CFR 721.12049), P-22-25 (40 CFR 721.12055), P-
22-58 (40 CFR 721.12058), P-22-75 (40 CFR 721.12059), P-22-78 (40 CFR 
721.12060), and P-22-82 (40 CFR 721.12062) EPA simplified the 
requirements in the industrial, commercial, and consumer activities 
paragraph by removing inadvertent duplication of certain significant 
new uses.
     For P-18-127 (40 CFR 721.12043), P-18-325 (40 CFR 
721.12044), P-20-14 (40 CFR 721.12045), P-21-164 (40 CFR 721.12047), P-
21-170 (40 CFR 721.12048), P-21-184 (40 CFR 721.12049), P-22-3 (40 CFR 
721.12050), P-22-4 (40 CFR 721.12051), P-22-5 (40 CFR 721.12052), P-22-
6 (40 CFR 721.12053), P-22-49 (40 CFR 721.12056). P-22-50 (40 CFR 
721.12057), P-22-58 (40 CFR 721.12058), P-22-75 (40 CFR 721.12059), P-
22-78 (40 CFR 721.12060), P-22-80 (40 CFR 721.12061), P-22-121 (40 CFR 
721.12063), P-22-145 (40 CFR 721.12064), P-22-175 (40 CFR 721.12065), 
P-22-30 (40 CFR 721.12067), P-23-36 (40 CFR 721.12068), and P-23-72 (40 
CFR 721.12074), EPA simplified the requirements in the hazard 
communication paragraph by referencing 40 CFR 721.72(g)(3)(iii) rather 
than referencing 721.72(g)(3) and writing out the required 
environmental hazard statement.
     For P-22-3 (40 CFR 721.12050), P-22-4 (40 CFR 721.12051), 
P-22-5 (40 CFR 721.12052), and P-22-6 (40 CFR

[[Page 33286]]

721.12053), EPA modified the language in the release to water paragraph 
to be consistent with previous SNURs that had similar requirements.
     For P-22-58 (40 CFR 721.12058) and P-23-36 (40 CFR 
721.12068), EPA made minor changes to the language in the industrial, 
commercial, and consumer activities paragraph to more closely align the 
significant new uses with the terms of the underlying TSCA Orders for 
these substances.
     For P-22-121 (40 CFR 721.12063) and P-22-175 (40 CFR 
721.12065), EPA replaced the generic chemical name with the specific 
chemical name and CASRN because the CBI claim for this information has 
been relinquished by the PMN submitter.
     For P-23-72 (40 CFR 721.12074), EPA modified the language 
in the industrial, commercial, and consumer activities paragraph to 
clarify that ``40% by weight'' is referring to the concentration of the 
substance in the final formulation.

III. Chemical Substances Subject to These SNURs

A. What is the designated cutoff date for ongoing uses?

    EPA designates the date of publication of the proposed rule as the 
cutoff date for determining whether the new use is ongoing, i.e., 
December 17, 2024 (89 FR 102046 (FRL-12386-01-OCSPP)). This designation 
is explained in more detail in Unit II.B.

B. What information was provided for each chemical substance?

    In Unit III.C. of the proposed rule, EPA provided the following 
information for each chemical substance subject to these SNURs:
     PMN number (the CFR citation assigned in the regulatory 
text section of this document).
     Chemical name (generic name, if the specific name is 
claimed as CBI).
     Chemical Abstracts Service Registry Number (CASRN) or 
Accession Number (if assigned, for confidential chemical identities).
     Basis for the SNUR (e.g., effective date of and basis for 
the TSCA Order).
     Potentially useful information.
    The regulatory text section of this document specifies the chemical 
substances and activities designated as significant new uses. Certain 
new uses, including production volume limits and other uses designated, 
may be claimed as CBI, as discussed in more detail in Unit II.C. of the 
proposed rule.
    In addition, as discussed in Unit III.B. of the proposed rule, 
these SNURs include PMN substances that are subject to orders issued 
under TSCA section 5(e)(1)(A), as required by the determinations made 
under TSCA section 5(a)(3)(B). Those TSCA Orders require protective 
measures to limit exposures or otherwise mitigate the potential 
unreasonable risk. As such, the SNURs identify as significant new uses 
any manufacturing, processing, use, distribution in commerce, or 
disposal that does not conform to the restrictions imposed by the 
underlying TSCA Orders, consistent with TSCA section 5(f)(4).

IV. Statutory and Executive Order Reviews

    Additional information about these statutes and Executive orders 
can be found at https://www.epa.gov/laws-regulations-and-executive-orders.

A. Executive Order 12866: Regulatory Planning and Review

    This action establishes SNURs for new chemical substances that were 
the subject of PMNs. The Office of Management and Budget (OMB) has 
exempted these types of actions from review under Executive Order 12866 
(58 FR 51735, October 4, 1993).

B. Executive Order 14192: Unleashing Prosperity Through Deregulation

    Executive Order 14192 (90 FR 9065, February 6, 2025) does not apply 
because a significant new use rule for a new chemical under TSCA 
section 5 is exempt from review under Executive Order 12866.

C. Paperwork Reduction Act (PRA)

    According to the PRA (44 U.S.C. 3501 et seq.), an agency may not 
conduct or sponsor, and a person is not required to respond to a 
collection of information that requires OMB approval under PRA, unless 
it has been approved by OMB and displays a currently valid OMB control 
number. The OMB control numbers for EPA's regulations in title 40 of 
the CFR, after appearing in the Federal Register, are listed in 40 CFR 
part 9, and included on the related collection instrument or form, if 
applicable.
    The information collection requirements related to SNURs have 
already been approved by OMB pursuant to PRA under OMB control number 
2070-0038 (EPA ICR No. 1188). This action does not impose any burden 
requiring additional OMB approval. If an entity were to submit a SNUN 
to the Agency, the annual burden is estimated to average between 30 and 
170 hours per submission. This burden estimate includes the time needed 
to review instructions, search existing data sources, gather and 
maintain the data needed, and complete, review, and submit the required 
SNUN.

D. Regulatory Flexibility Act (RFA)

    I certify that this action will not have a significant economic 
impact on a substantial number of small entities under the RFA (5 
U.S.C. 601 et seq.). The requirement to submit a SNUN applies to any 
person (including small or large entities) who intends to engage in any 
activity described in the final rule as a ``significant new use.'' 
Because these uses are ``new,'' based on all information currently 
available to EPA, EPA has concluded that no small or large entities 
presently engage in such activities.
    A SNUR requires that any person who intends to engage in such 
activity in the future must first notify EPA by submitting a SNUN. 
Although some small entities may decide to pursue a significant new use 
in the future, EPA cannot presently determine how many, if any, there 
may be. However, EPA's experience to date is that, in response to the 
promulgation of SNURs covering over 1,000 chemicals, the Agency 
receives only a small number of notices per year. For example, the 
number of SNUNs received was 7 in Federal fiscal year (FY) 2020, 9 in 
FY2021, 9 in FY2022, 23 in FY2023, and 7 in FY2024, and only a fraction 
of these submissions were from small businesses.
    In addition, the Agency currently offers relief to qualifying small 
businesses by reducing the SNUN submission fee from $37,000 to $6,480. 
This lower fee reduces the total reporting and recordkeeping cost of 
submitting a SNUN to about $14,500 per SNUN submission for qualifying 
small firms. Therefore, the potential economic impacts of complying 
with these proposed SNURs are not expected to be significant or 
adversely impact a substantial number of small entities. In a SNUR that 
published in the Federal Register of June 2, 1997 (62 FR 29684 (FRL-
5597-1)), the Agency presented its general determination that SNURs are 
not expected to have a significant economic impact on a substantial 
number of small entities, which was provided to the Chief Counsel for 
Advocacy of the Small Business Administration.

E. Unfunded Mandates Reform Act (UMRA)

    This action does not contain an unfunded mandate of $100 million or 
more (in 1995 dollars) in any one year as described in UMRA, 2 U.S.C. 
1531-1538, and does not significantly or

[[Page 33287]]

uniquely affect small governments. Based on EPA's experience with 
proposing and finalizing SNURs, State, local, and Tribal governments 
have not been impacted by SNURs, and EPA does not have any reasons to 
believe that any State, local, or Tribal government will be impacted by 
these SNURs. In addition, the estimated costs of this action to the 
private sector do not exceed $183 million or more in any one year (the 
1995 dollars are adjusted to 2023 dollars for inflation using the GDP 
implicit price deflator). The estimated costs for this action are 
discussed in Unit I.D.

F. Executive Order 13132: Federalism

    This action will not have federalism implications as specified in 
Executive Order 13132 (64 FR 43255, August 10, 1999), because it is not 
expected to have a substantial direct effect on States, on the 
relationship between the national government and the States, or on the 
distribution of power and responsibilities among the various levels of 
government. Accordingly, the requirements of Executive Order 13132 do 
not apply to this action.

G. Executive Order 13175: Consultation and Coordination With Indian 
Tribal Governments

    This action will not have Tribal implications as specified in 
Executive Order 13175 (65 FR 67249, November 9, 2000), because it is 
not expected to have substantial direct effects on Indian Tribes, 
significantly or uniquely affect the communities of Indian Tribal 
governments and does not involve or impose any requirements that affect 
Indian Tribes. Accordingly, the requirements of Executive Order 13175 
do not apply to this action.

H. Executive Order 13045: Protection of Children From Environmental 
Health Risks and Safety Risks

    This action is not subject to Executive Order 13045 (62 FR 19885, 
April 23, 1997), because it does not concern an environmental health or 
safety risk. Since this action does not concern a human health risk, 
EPA's 2021 Policy on Children's Health also does not apply. Although 
the establishment of these SNURs do not address an existing children's 
environmental health concern because the chemical uses involved are not 
ongoing uses, SNURs require that persons notify EPA at least 90 days 
before commencing manufacture (defined by statute to include import) or 
processing of the identified chemical substances for an activity that 
is designated as a significant new use by the SNUR. This notification 
allows EPA to assess the intended uses to identify potential risks and 
take appropriate actions before the activities commence.

I. Executive Order 13211: Actions Concerning Regulations That 
Significantly Affect Energy Supply, Distribution, or Use

    This action is not a ``significant energy action'' as defined in 
Executive Order 13211 (66 FR 28355, May 22, 2001), because it is not 
likely to have a significant adverse effect on the supply, 
distribution, or use of energy.

J. National Technology Transfer and Advancement Act (NTTAA)

    This action does not involve any technical standards subject to 
NTTAA section 12(d) (15 U.S.C. 272 note).

K. Congressional Review Act (CRA)

    This action is subject to the CRA (5 U.S.C. 801 et seq.), and EPA 
will submit a rule report to each House of the Congress and to the 
Comptroller General of the United States. This action is not a ``major 
rule'' as defined by 5 U.S.C. 804(2).

List of Subjects in 40 CFR Part 721

    Environmental protection, Chemicals, Hazardous substances, 
Reporting and recordkeeping requirements.

    Dated: July 14, 2025.
Mary Elissa Reaves,
Director, Office of Pollution Prevention and Toxics.
    For the reasons stated in the preamble, 40 CFR chapter I is amended 
as follows:

PART 721--SIGNIFICANT NEW USES OF CHEMICAL SUBSTANCES

0
1. The authority citation for part 721 continues to read as follows:

    Authority:  15 U.S.C. 2604, 2607, and 2625(c).


0
2. Add Sec. Sec.  721.12043 through 721.12076 to Subpart E to read as 
follows:

Subpart E--Significant New Uses for Specific Chemical Substances

Sec.
* * * * *
721.12043 Heptane, 2-methoxy-2-methyl-.
721.12044 Benzenesulfonic acid, alkyl-, compd. with 1,1'-iminobis[2-
propanol] (1:1) (generic).
721.12045 Sugars, polymer with alkanetriamine (generic).
721.12046 Isooctadecanamide, N,N-bis(2-ethylhexyl)-.
721.12047 2-Butanone, oxime, reaction products with 
trimethoxymethylsilane.
721.12048 2,6-Bis(dialkyl)-4-[2-(1-alkyl-4(1H)-
pyridinylidene)alkylidene]-2,5-cycloalkyladien-1-one (generic).
721.12049 Fatty acids, soya, reaction products with ammonia-
ethanolamine reaction by-products.
721.12050 1,5-Pentanediamine, 2-methyl-, hydrochloride (1:2).
721.12051 1,5-Pentanediamine, 2-methyl-, hydrochloride (1:1).
721.12052 Formic acid, compd. with 2-methyl-1,5- pentanediamine 
(2:1).
721.12053 Formic acid, compd. with 2-methyl-1,5-pentanediamine 
(1:1).
721.12054 Alkadiene, homopolymer, hydroxy-terminated, bis[N-[2-[(1-
oxo-2-propen-1-yl)oxylethyl]carbamates] (generic).
721.12055 Oxirane, 2-(chloromethyl)-, homopolymer, ether with 
dialkyl-alkanediol (2:1) (generic).
721.12056 Aryl, polymer with formaldehyde, glycidyl ether, reaction 
products with amino alkyl-alkane diamine, cyclohexanediamine and 
alkylene (alkylcyclohexanamine) (generic).
721.12057 Alkene, alkoxy-, polymer with alkoxyalkene (generic).
721.12058 Methanesulfonamide, l,l,l-trifluoro-N-
[(trifluoromethyl)sulfonyl]-, sodium salt (1:1).
721.12059 1H-Isoindole-1,3(2H)-dione, 3a,4,7,7a-tetrahydro-2-(2-
hydroxyethyl)-.
721.12060 Oxirane, 2-methyl-, polymer with oxirane, mono-isoalkyl 
ethers, phosphates, salt (generic).
721.12061 Poly(oxy-1,2-ethanediyl), .alpha.-(2-aminoethyl)-.omega.-
(2-aminoethoxy)- and Poly(oxy-1,2-ethanediyl), .alpha.,.alpha.',-
(iminodi-2,1- ethanediyl)bis[.omega.-(2-aminoethoxy)-.
721.12062 Alkenoic acid, alkyl, carbopolycyclic alkyl ester, polymer 
with trihalo (trihaloalkyl) alkyl alkyl alkenoate (generic).
721.12063 1-Propene, 1,1,3,3-tetrachloro-.
721.12064 Alkanoic acid, trialkyl-, diester with carbomonocycle 
bis(alkyleneoxy)]bis[alkanediol] (generic).
721.12065 Silsesquioxanes, Me vinyl, hydroxy and methoxy and 
[(trimethylsilyl)oxy]- terminated.
721.12066 Vegetable oil, polymer with pimelin ketone, oxymethylene 
and polymethylenepolyphenylene isocyanate (generic).
721.12067 Silsesquioxanes, 3-mercaptopropyl, polymers with silicic 
acid (H4SiO4) tetra-Et ester, [(trimethylsilyl)oxy]-terminated.
721.12068 Castor oil, polymer with dicyclopentadiene, maleic 
anhydride, 2-methyl-1,3-propanediol, 3a,4,7,7a-tetrahydro-2-(2-
hydroxyethyl)-1H-isoindole-1,3(2H)-dione and triethylene glycol.
721.12069 Monoaromatic cyclic alkylene sulfonium fluoroalkyl 
sulfonic acid salt (generic).
721.12070 Monoaromatic cyclic alkylene sulfonium fluoroalkyl 
sulfonic acid salt (generic).
721.12071 Aromatic sulfonium tricyclo fluoroalkyl sulfonic acid salt 
(generic).

[[Page 33288]]

721.12072 Aromatic dibenzothiophenium fluoroalkyl carbopolycycle 
sulfonic acid salt (generic).
721.12073 Alkanediol, substituted, polymer with diisocyanatoalkane, 
substituted heterocycle-modified (generic).
721.12074 Halosubstituted carbopolycycle, polymer with substituted 
carbomonocycles and oxybis[alkanol] (generic).
721.12075 Polymer of benzenedicarboxylic acid, substituted-
benzenedicarboxylic acid, branched-alkyldiol, alkyldiol and 
triisocyanate (generic).
721.12076 Sulfonium, tricarbocyclic-, alkylcarbomonocyclic-
polyfluoro-heteropolycyclic-alkyl sulfonate (1:1), polymer with 
alkylaryl and carbomonocyclic alkylalkanoate, di-Me 2,2'-(1,2-
diazenediyl)bis[2-alkylalkanoate]-initiated (generic).
* * * * *


Sec.  721.12043  Heptane, 2-methoxy-2-methyl-.

    (a) Chemical substance and significant new uses subject to 
reporting. (1) The chemical substance identified as heptane, 2-methoxy-
2-methyl- (PMN P-18-127; CASRN 76589-16-7) is subject to reporting 
under this section for the significant new uses described in paragraph 
(a)(2) of this section.
    (2) The significant new uses are:
    (i) Protection in the workplace. Requirements as specified in Sec.  
721.63(a)(1) and (3), and (c). When determining which persons are 
reasonably likely to be exposed as required for Sec.  721.63(a)(1), 
engineering control measures (e.g., enclosure or confinement of the 
operation, general and local ventilation) or administrative control 
measures (e.g., workplace policies and procedures) shall be considered 
and implemented to prevent exposure, where feasible.
    (ii) Hazard communication. Requirements as specified in Sec.  
721.72(a) through (d), (f), (g)(1), (g)(3)(iii), and (g)(5). For 
purposes of Sec.  721.72(g)(1), this substance may cause: skin 
sensitization and specific target organ toxicity. Alternative hazard 
and warning statements that meet the criteria of the Globally 
Harmonized System and OSHA Hazard Communication Standard may be used.
    (iii) Industrial, commercial, and consumer activities. Requirements 
as specified in Sec.  721.80(f). It is a significant new use to 
manufacture the substance unless by import into the United States in a 
solution of no greater than 5% by weight (i.e., no domestic 
manufacture). It is a significant new use to process the substance 
unless in a solution of no greater than 5% by weight of the substance. 
It is a significant new use to process for use or use the substance in 
consumer products unless the concentration of the substance is less 
than 1% by weight.
    (iv) Release to water. Requirements as specified in Sec.  
721.90(a)(4), (b)(4), and (c)(4), where N=210.
    (b) Specific requirements. The provisions of Subpart A of this part 
apply to this section except as modified by this paragraph (b).
    (1) Recordkeeping. Recordkeeping requirements as specified in Sec.  
721.125(a) through (i) and (k) are applicable to manufacturers, 
importers, and processors of this substance.
    (2) Limitation or revocation of certain notification requirements. 
The provisions of Sec.  721.185 apply to this section.


Sec.  721.12044  Benzenesulfonic acid, alkyl-, compd. with 1,1'-
iminobis[2-propanol] (1:1) (generic).

    (a) Chemical substance and significant new uses subject to 
reporting. (1) The chemical substance identified generically as 
benzenesulfonic acid, alkyl-, compd. with 1,1'-iminobis[2-propanol] 
(1:1) (PMN P-18-325) is subject to reporting under this section for the 
significant new uses described in paragraph (a)(2) of this section.
    (2) The significant new uses are:
    (i) Protection in the workplace. Requirements as specified in Sec.  
721.63(a)(1) and (3), (b), and (c). When determining which persons are 
reasonably likely to be exposed as required for Sec.  721.63(a)(1), 
engineering control measures (e.g., enclosure or confinement of the 
operation, general and local ventilation) or administrative control 
measures (e.g., workplace policies and procedures) shall be considered 
and implemented to prevent exposure, where feasible. For purposes of 
Sec.  721.63(b), the concentration is set at 1.0%.
    (ii) Hazard communication. Requirements as specified in Sec.  
721.72(a) through (f), and (g)(1), (g)(3)(iii) and (g)(5). For purposes 
of Sec.  721.72(e), the concentration is set at 1.0%. For purposes of 
Sec.  721.72(g)(1), this substance may cause: skin irritation, eye 
irritation, and specific target organ toxicity. Alternative hazard and 
warning statements that meet the criteria of the Globally Harmonized 
System and OSHA Hazard Communication Standard may be used.
    (iii) Industrial, commercial, and consumer activities. It is a 
significant new use to manufacture, process, or use the substance in 
any manner that results in inhalation exposure to the substance. It is 
a significant new use to process for use or use the substance other 
than as an industrial cross-linking catalyst.
    (iv) Release to water. Requirements as specified in Sec.  
721.90(a)(1), (b)(1), and (c)(1).
    (b) Specific requirements. The provisions of Subpart A of this part 
apply to this section except as modified by this paragraph (b).
    (1) Recordkeeping. Recordkeeping requirements as specified in Sec.  
721.125(a) through (i) and (k) are applicable to manufacturers, 
importers, and processors of this substance.
    (2) Limitation or revocation of certain notification requirements. 
The provisions of Sec.  721.185 apply to this section.


Sec.  721.12045  Sugars, polymer with alkanetriamine (generic).

    (a) Chemical substance and significant new uses subject to 
reporting.
    (1) The chemical substance identified generically as sugars, 
polymer with alkanetriamine (PMN P-20-14) is subject to reporting under 
this section for the significant new uses described in paragraph (a)(2) 
of this section. The requirements of this section do not apply to 
quantities of the substance after they have been completely reacted or 
cured.
    (2) The significant new uses are:
    (i) Protection in the workplace. Requirements as specified in Sec.  
721.63(a)(1) and (3), (b), and (c). When determining which persons are 
reasonably likely to be exposed as required for Sec.  721.63(a)(1), 
engineering control measures (e.g., enclosure or confinement of the 
operation, general and local ventilation) or administrative control 
measures (e.g., workplace policies and procedures) shall be considered 
and implemented to prevent exposure, where feasible. For purposes of 
Sec.  721.63(b), the concentration is set at 1.0%.
    (ii) Hazard communication. Requirements as specified in Sec.  
721.72(a) through (f), (g)(1), (g)(3)(iii), and (g)(5). For purposes of 
Sec.  721.72(e), the concentration is set at 1.0%. For purposes of 
Sec.  721.72(g)(1), this substance may cause: reproductive toxicity and 
specific target organ toxicity. Alternative hazard and warning 
statements that meet the criteria of the Globally Harmonized System and 
OSHA Hazard Communication Standard may be used.
    (iii) Industrial, commercial, and consumer activities. Requirements 
as specified in Sec.  721.80(o).
    (iv) Release to water. Requirements as specified in Sec.  
721.90(a)(4), (b)(4), and (c)(4), where N=191.
    (b) Specific requirements. The provisions of Subpart A of this part

[[Page 33289]]

apply to this section except as modified by this paragraph (b).
    (1) Recordkeeping. Recordkeeping requirements as specified in Sec.  
721.125(a) through (i) and (k) are applicable to manufacturers, 
importers, and processors of this substance.
    (2) Limitation or revocation of certain notification requirements. 
The provisions of Sec.  721.185 apply to this section.


Sec.  721.12046  Isooctadecanamide, N,N-bis(2-ethylhexyl)-.

    (a) Chemical substance and significant new uses subject to 
reporting. (1) The chemical substance identified as isooctadecanamide, 
N,N-bis(2-ethylhexyl)- (PMN P-21-86; CASRN 1616494-50-8) is subject to 
reporting under this section for the significant new uses described in 
paragraph (a)(2) of this section. The requirements of this section do 
not apply to quantities of the substance after they have been entrained 
in a polymer.
    (2) The significant new uses are:
    (i) Protection in the workplace. Requirements as specified in Sec.  
721.63(a)(1) and (3), (b), and (c). When determining which persons are 
reasonably likely to be exposed as required for Sec.  721.63(a)(1), 
engineering control measures (e.g., enclosure or confinement of the 
operation, general and local ventilation) or administrative control 
measures (e.g., workplace policies and procedures) shall be considered 
and implemented to prevent exposure, where feasible. For purposes of 
Sec.  721.63(b), the concentration is set at 1.0%.
    (ii) Hazard communication. Requirements as specified in Sec.  
721.72(a) through (f), (g)(1), and (5). For purposes of Sec.  
721.72(e), the concentration is set at 1.0%. For purposes of Sec.  
721.72(g)(1), this substance may cause: specific target organ toxicity. 
Alternative hazard and warning statements that meet the criteria of the 
Globally Harmonized System and OSHA Hazard Communication Standard may 
be used.
    (iii) Industrial, commercial, and consumer activities. It is a 
significant new use to process the substance for use in a consumer 
product where the concentration of the substance in the consumer 
product formulation exceeds the confidential percentage listed in the 
Order. It is a significant new use to use the substance in a consumer 
product where the concentration of the substance exceeds the 
confidential percentage listed in the Order.
    (b) Specific requirements. The provisions of Subpart A of this part 
apply to this section except as modified by this paragraph (b).
    (1) Recordkeeping. Recordkeeping requirements as specified in Sec.  
721.125(a) through (i) are applicable to manufacturers, importers, and 
processors of this substance.
    (2) Limitation or revocation of certain notification requirements. 
The provisions of Sec.  721.185 apply to this section.


Sec.  721.12047  2-Butanone, oxime, reaction products with 
trimethoxymethylsilane.

    (a) Chemical substance and significant new uses subject to 
reporting. (1) The chemical substance identified as 2-butanone, oxime, 
reaction products with trimethoxymethylsilane (PMN P-21-164; CASRN 
2639393-45-4) is subject to reporting under this section for the 
significant new uses described in paragraph (a)(2) of this section. The 
requirements of this section do not apply to quantities of the 
substance after they have been completely reacted or cured.
    (2) The significant new uses are:
    (i) Protection in the workplace. Requirements as specified in Sec.  
721.63(a)(1), (a)(3) through (6), and (c). When determining which 
persons are reasonably likely to be exposed as required for Sec.  
721.63(a)(1) and (4), engineering control measures (e.g., enclosure or 
confinement of the operation, general and local ventilation) or 
administrative control measures (e.g., workplace policies and 
procedures) shall be considered and implemented to prevent exposure, 
where feasible. For purposes of Sec.  721.63(a)(5), respirators must 
provide a National Institute for Occupational Safety and Health (NIOSH) 
assigned protection factor (APF) of at least 50.
    (ii) Hazard communication. Requirements as specified in Sec.  
721.72(a) through (d), (f), (g)(1), (g)(3)(iii), and (g)(5). For 
purposes of Sec.  721.72(g)(1), this substance may cause: acute 
toxicity, carcinogenicity, serious eye damage, reproductive toxicity, 
skin irritation, skin sensitization, and specific target organ 
toxicity. Alternative hazard and warning statements that meet the 
criteria of the Globally Harmonized System and OSHA Hazard 
Communication Standard may be used.
    (iii) Industrial, commercial, and consumer activities. It is a 
significant new use to load or unload the substance for manufacture, 
processing, or use in any manner unless under a gas (e.g., nitrogen) 
blanket. It is a significant new use to use the substance unless at 4% 
or less by weight in formulation. It is a significant new use to apply 
the substance for use unless by roll, brush, or dip coating.
    (iv) Disposal. Requirements as specified in Sec.  721.85(a)(1), 
(b)(1), and (c)(1).
    (v) Release to water. Requirements as specified in Sec.  
721.90(a)(1), (b)(1), and (c)(1).
    (b) Specific requirements. The provisions of Subpart A of this part 
apply to this section except as modified by this paragraph (b).
    (1) Recordkeeping. Recordkeeping requirements as specified in Sec.  
721.125(a) through (k) are applicable to manufacturers, importers, and 
processors of this substance.
    (2) Limitation or revocation of certain notification requirements. 
The provisions of Sec.  721.185 apply to this section.


Sec.  721.12048  2,6-Bis(dialkyl)-4-[2-(1-alkyl-4(1H)-
pyridinylidene)alkylidene]-2,5-cycloalkyladien-1-one (generic).

    (a) Chemical substance and significant new uses subject to 
reporting. (1) The chemical substance identified generically as 2,6-
bis(dialkyl)-4-[2-(1-alkyl-4(1H)-pyridinylidene)alkylidene]-2,5-
cycloalkyladien-1-one (generic) (PMN P-21-170) is subject to reporting 
under this section for the significant new uses described in paragraph 
(a)(2) of this section.
    (2) The significant new uses are:
    (i) Protection in the workplace. Requirements as specified in Sec.  
721.63(a)(1), (a)(3) through (6), and (c). When determining which 
persons are reasonably likely to be exposed as required for Sec.  
721.63(a)(1) and (4), engineering control measures (e.g., enclosure or 
confinement of the operation, general and local ventilation) or 
administrative control measures (e.g., workplace policies and 
procedures) shall be considered and implemented to prevent exposure, 
where feasible. For purposes of Sec.  721.63(a)(5), respirators must 
provide a National Institute for Occupational Safety and Health (NIOSH) 
assigned protection factor (APF) of at least 10.
    (ii) Hazard communication. Requirements as specified in Sec.  
721.72(a) through (d), (f), (g)(1), (g)(3)(iii), and (g)(5). For 
purposes of Sec.  721.72(g)(1), this substance may cause: acute 
toxicity, skin irritation, eye irritation, skin sensitization, genetic 
toxicity, carcinogenicity, reproductive toxicity, and specific target 
organ toxicity. Alternative hazard and warning statements that meet the 
criteria of the Globally Harmonized System and OSHA Hazard 
Communication Standard may be used.
    (iii) Industrial, commercial, and consumer activities. It is a 
significant new use to manufacture the substance

[[Page 33290]]

beyond an annual production volume of 10 kilograms. It is a significant 
new use to process for use or use the substance other than as a color 
indicator for frying oil breakdown. It is a significant new use to 
process for use or use the substance where the concentration of the 
substance in the final product exceeds 0.008%. It is a significant new 
use to manufacture, process, or use the substance in any manner that 
results in the release of the substance to air except with the use of a 
HEPA filtration system.
    (iv) Release to water. Requirements as specified in Sec.  
721.90(a)(1), (b)(1), and (c)(1).
    (b) Specific requirements. The provisions of Subpart A of this part 
apply to this section except as modified by this paragraph (b).
    (1) Recordkeeping. Recordkeeping requirements as specified in Sec.  
721.125(a) through (i) and (k) are applicable to manufacturers, 
importers, and processors of this substance.
    (2) Limitation or revocation of certain notification requirements. 
The provisions of Sec.  721.185 apply to this section.


Sec.  721.12049  Fatty acids, soya, reaction products with ammonia-
ethanolamine reaction by-products.

    (a) Chemical substance and significant new uses subject to 
reporting. (1) The chemical substance identified as fatty acids, soya, 
reaction products with ammonia-ethanolamine reaction by-products (PMN 
P-21-184; CASRN 2378512-59-3) is subject to reporting under this 
section for the significant new uses described in paragraph (a)(2) of 
this section.
    (2) The significant new uses are:
    (i) Protection in the workplace. Requirements as specified in Sec.  
721.63(a)(1), (a)(3), and (c). When determining which persons are 
reasonably likely to be exposed as required for Sec.  721.63(a)(1), 
engineering control measures (e.g., enclosure or confinement of the 
operation, general and local ventilation) or administrative control 
measures (e.g., workplace policies and procedures) shall be considered 
and implemented to prevent exposure, where feasible.
    (ii) Hazard communication. Requirements as specified in Sec.  
721.72(a) through (d), (f), (g)(1), (g)(3)(iii), and (g)(5). For 
purposes of Sec.  721.72(g)(1), this substance may cause: acute 
toxicity, skin corrosion, skin irritation, serious eye damage, eye 
irritation, skin sensitization, and specific target organ toxicity. 
Alternative hazard and warning statements that meet the criteria of the 
Globally Harmonized System and OSHA Hazard Communication Standard may 
be used.
    (iii) Industrial, commercial, and consumer activities. Requirements 
as specified in Sec.  721.80(o). It is a significant new use to 
manufacture, process, or use the substance in any manner that results 
in the generation of vapor, mist, aerosol, or dust.
    (iv) Release to water. Requirements as specified in Sec.  
721.90(a)(4), (b)(4), and (c)(4), where N=2.
    (b) Specific requirements. The provisions of Subpart A of this part 
apply to this section except as modified by this paragraph (b).
    (1) Recordkeeping. Recordkeeping requirements as specified in Sec.  
721.125(a) through (i) and (k) are applicable to manufacturers, 
importers, and processors of this substance.
    (2) Limitation or revocation of certain notification requirements. 
The provisions of Sec.  721.185 apply to this section.


Sec.  721.12050  1,5-Pentanediamine, 2-methyl-, hydrochloride (1:2).

    (a) Chemical substance and significant new uses subject to 
reporting. (1) The chemical substance identified as 1,5-pentanediamine, 
2-methyl-, hydrochloride (1:2) (PMN P-22-3; CASRN 34813-63-3) is 
subject to reporting under this section for the significant new uses 
described in paragraph (a)(2) of this section.
    (2) The significant new uses are:
    (i) Protection in the workplace. Requirements as specified in Sec.  
721.63(a)(1) and (3), (b), and (c). When determining which persons are 
reasonably likely to be exposed as required for Sec.  721.63(a)(1), 
engineering control measures (e.g., enclosure or confinement of the 
operation, general and local ventilation) or administrative control 
measures (e.g., workplace policies and procedures) shall be considered 
and implemented to prevent exposure, where feasible. For purposes of 
Sec.  721.63(b), the concentration is set at 1.0%.
    (ii) Hazard communication. Requirements as specified in Sec.  
721.72(a) through (f), (g)(1), (g)(3)(iii), and (g)(5). For purposes of 
Sec.  721.72(e), the concentration is set at 1.0%. For purposes of 
Sec.  721.72(g)(1), this substance may cause: acute toxicity, skin 
irritation, and eye irritation. Alternative hazard and warning 
statements that meet the criteria of the Globally Harmonized System and 
OSHA Hazard Communication Standard may be used.
    (iii) Industrial, commercial, and consumer activities. Requirements 
as specified in Sec.  721.80(o). It is a significant new use to 
manufacture, process, or use the substance in any manner that results 
in inhalation exposure to the substance.
    (iv) Release to water. Requirements as specified in Sec.  
721.90(a)(4), (b)(4), and (c)(4), where N=570 in aggregate of P-22-3, 
P-22-4, P-22-5, and P-22-6.
    (b) Specific requirements. The provisions of Subpart A of this part 
apply to this section except as modified by this paragraph (b).
    (1) Recordkeeping. Recordkeeping requirements as specified in Sec.  
721.125(a) through (i) and (k) are applicable to manufacturers, 
importers, and processors of this substance.
    (2) Limitation or revocation of certain notification requirements. 
The provisions of Sec.  721.185 apply to this section.


Sec.  721.12051  1,5-Pentanediamine, 2-methyl-, hydrochloride (1:1).

    (a) Chemical substance and significant new uses subject to 
reporting. (1) The chemical substance identified as 1,5-pentanediamine, 
2-methyl-, hydrochloride (1:1) (PMN P-22-4; CASRN 1840915-04-9) is 
subject to reporting under this section for the significant new uses 
described in paragraph (a)(2) of this section.
    (2) The significant new uses are:
    (i) Protection in the workplace. Requirements as specified in Sec.  
721.63(a)(1) and (3), (b), and (c). When determining which persons are 
reasonably likely to be exposed as required for Sec.  721.63(a)(1), 
engineering control measures (e.g., enclosure or confinement of the 
operation, general and local ventilation) or administrative control 
measures (e.g., workplace policies and procedures) shall be considered 
and implemented to prevent exposure, where feasible. For purposes of 
Sec.  721.63(b), the concentration is set at 1.0%.
    (ii) Hazard communication. Requirements as specified in Sec.  
721.72(a) through (f), (g)(1), (g)(3)(iii), and (g)(5). For purposes of 
Sec.  721.72(e), the concentration is set at 1.0%. For purposes of 
Sec.  721.72(g)(1), this substance may cause: acute toxicity, skin 
irritation, eye irritation, serious eye damage, skin corrosion, and 
specific target organ toxicity. Alternative hazard and warning 
statements that meet the criteria of the Globally Harmonized System and 
OSHA Hazard Communication Standard may be used.
    (iii) Industrial, commercial, and consumer activities. Requirements 
as specified in Sec.  721.80(o). It is a significant new use to 
manufacture, process, or use the substance in any

[[Page 33291]]

manner that results in inhalation exposure to the substance.
    (iv) Release to water. Requirements as specified in Sec.  
721.90(a)(4), (b)(4), and (c)(4), where N=570 in aggregate of P-22-3, 
P-22-4, P-22-5, and P-22-6.
    (b) Specific requirements. The provisions of Subpart A of this part 
apply to this section except as modified by this paragraph (b).
    (1) Recordkeeping. Recordkeeping requirements as specified in Sec.  
721.125(a) through (i) and (k) are applicable to manufacturers, 
importers, and processors of this substance.
    (2) Limitation or revocation of certain notification requirements. 
The provisions of Sec.  721.185 apply to this section.


Sec.  721.12052  Formic acid, compd. with 2-methyl-1,5-pentanediamine 
(2:1).

    (a) Chemical substance and significant new uses subject to 
reporting.
    (1) The chemical substance identified as formic acid, compd. with 
2-methyl-1,5-pentanediamine (2:1) (PMN P-22-5; CASRN 1836131-73-7) is 
subject to reporting under this section for the significant new uses 
described in paragraph (a)(2) of this section.
    (2) The significant new uses are:
    (i) Protection in the workplace. Requirements as specified in Sec.  
721.63(a)(1) and (3), (b), and (c). When determining which persons are 
reasonably likely to be exposed as required for Sec.  721.63(a)(1), 
engineering control measures (e.g., enclosure or confinement of the 
operation, general and local ventilation) or administrative control 
measures (e.g., workplace policies and procedures) shall be considered 
and implemented to prevent exposure, where feasible. For purposes of 
Sec.  721.63(b), the concentration is set at 1.0%.
    (ii) Hazard communication. Requirements as specified in Sec.  
721.72(a) through (f), (g)(1), (g)(3)(iii), and (g)(5). For purposes of 
Sec.  721.72(e), the concentration is set at 1.0%. For purposes of 
Sec.  721.72(g)(1), this substance may cause: acute toxicity, skin 
irritation, eye irritation, and specific target organ toxicity. 
Alternative hazard and warning statements that meet the criteria of the 
Globally Harmonized System and OSHA Hazard Communication Standard may 
be used.
    (iii) Industrial, commercial, and consumer activities. Requirements 
as specified in Sec.  721.80(o). It is a significant new use to 
manufacture, process, or use the substance in any manner that results 
in inhalation exposure to the substance.
    (iv) Release to water. Requirements as specified in Sec.  
721.90(a)(4), (b)(4), and (c)(4), where N=570 in aggregate of P-22-3, 
P-22-4, P-22-5, and P-22-6.
    (b) Specific requirements. The provisions of Subpart A of this part 
apply to this section except as modified by this paragraph (b).
    (1) Recordkeeping. Recordkeeping requirements as specified in Sec.  
721.125(a) through (i) and (k) are applicable to manufacturers, 
importers, and processors of this substance.
    (2) Limitation or revocation of certain notification requirements. 
The provisions of Sec.  721.185 apply to this section.


Sec.  721.12053  Formic acid, compd. with 2-methyl-1,5-pentanediamine 
(1:1)

    (a) Chemical substance and significant new uses subject to 
reporting.
    (1) The chemical substance identified as formic acid, compd. with 
2-methyl-1,5-pentanediamine (1:1) (PMN P-22-6; CASRN 1836131-75-9) is 
subject to reporting under this section for the significant new uses 
described in paragraph (a)(2) of this section.
    (2) The significant new uses are:
    (i) Protection in the workplace. Requirements as specified in Sec.  
721.63(a)(1) and (3), (b), and (c). When determining which persons are 
reasonably likely to be exposed as required for Sec.  721.63(a)(1), 
engineering control measures (e.g., enclosure or confinement of the 
operation, general and local ventilation) or administrative control 
measures (e.g., workplace policies and procedures) shall be considered 
and implemented to prevent exposure, where feasible. For purposes of 
Sec.  721.63(b), the concentration is set at 1.0%.
    (ii) Hazard communication. Requirements as specified in Sec.  
721.72(a) through (f), (g)(1), (g)(3)(iii), and (g)(5). For purposes of 
Sec.  721.72(e), the concentration is set at 1.0%. For purposes of 
Sec.  721.72(g)(1), this substance may cause: acute toxicity, skin 
corrosion, skin irritation, serious eye damage, eye irritation, and 
specific target organ toxicity. Alternative hazard and warning 
statements that meet the criteria of the Globally Harmonized System and 
OSHA Hazard Communication Standard may be used.
    (iii) Industrial, commercial, and consumer activities. Requirements 
as specified in Sec.  721.80(o). It is a significant new use to 
manufacture, process, or use the substance in any manner that results 
in inhalation exposure to the substance.
    (iv) Release to water. Requirements as specified in Sec.  
721.90(a)(4), (b)(4), and (c)(4), where N=570 in aggregate of P-22-3, 
P-22-4, P-22-5, and P-22-6.
    (b) Specific requirements. The provisions of Subpart A of this part 
apply to this section except as modified by this paragraph (b).
    (1) Recordkeeping. Recordkeeping requirements as specified in Sec.  
721.125(a) through (i) and (k) are applicable to manufacturers, 
importers, and processors of this substance.
    (2) Limitation or revocation of certain notification requirements. 
The provisions of Sec.  721.185 apply to this section.


Sec.  721.12054  Alkadiene, homopolymer, hydroxy-terminated, bis[N-[2-
[(1-oxo-2-propen-1- yl)oxylethyl]carbamates] (generic).

    (a) Chemical substance and significant new uses subject to 
reporting. (1) The chemical substance identified generically as 
alkadiene, homopolymer, hydroxy-terminated, bis[N-[2-[(1-oxo-2-propen-
1- yl)oxylethyl]carbamates] (PMN P-22-11) is subject to reporting under 
this section for the significant new uses described in paragraph (a)(2) 
of this section.
    (2) The significant new uses are:
    (i) Protection in the workplace. Requirements as specified in Sec.  
721.63(a)(1) and (3), and (c). When determining which persons are 
reasonably likely to be exposed as required for Sec.  721.63(a)(1), 
engineering control measures (e.g., enclosure or confinement of the 
operation, general and local ventilation) or administrative control 
measures (e.g., workplace policies and procedures) shall be considered 
and implemented to prevent exposure, where feasible.
    (ii) Hazard communication. Requirements as specified in Sec.  
721.72(a) through (d), (f), (g)(1), and (g)(5). For purposes of Sec.  
721.72(g)(1), this substance may cause: skin sensitization, respiratory 
sensitization, reproductive toxicity, and specific target organ 
toxicity. Alternative hazard and warning statements that meet the 
criteria of the Globally Harmonized System and OSHA Hazard 
Communication Standard may be used.
    (iii) Industrial, commercial, and consumer activities. Requirements 
as specified in Sec.  721.80(o). It is a significant new use to 
manufacture, process, or use the substance in any manner that results 
in inhalation exposure to the substance.
    (b) Specific requirements. The provisions of Subpart A of this part 
apply to this section except as modified by this paragraph (b).
    (1) Recordkeeping. Recordkeeping requirements as specified in

[[Page 33292]]

Sec.  721.125(a) through (i) are applicable to manufacturers, 
importers, and processors of this substance.
    (2) Limitation or revocation of certain notification requirements. 
The provisions of Sec.  721.185 apply to this section.


Sec.  721.12055  Oxirane, 2-(chloromethyl)-, homopolymer, ether with 
dialkyl-alkanediol (2:1) (generic).

    (a) Chemical substance and significant new uses subject to 
reporting. (1) The chemical substance identified generically as 
oxirane, 2-(chloromethyl)-, homopolymer, ether with dialkyl-alkanediol 
(2:1) (PMN P-22-25) is subject to reporting under this section for the 
significant new uses described in paragraph (a)(2) of this section.
    (2) The significant new uses are:
    (i) Protection in the workplace. Requirements as specified in Sec.  
721.63(a)(1) and (3), (b), and (c). When determining which persons are 
reasonably likely to be exposed as required for Sec.  721.63(a)(1), 
engineering control measures (e.g., enclosure or confinement of the 
operation, general and local ventilation) or administrative control 
measures (e.g., workplace policies and procedures) shall be considered 
and implemented to prevent exposure, where feasible. For purposes of 
Sec.  721.63(b), the concentration is set at 0.1%.
    (ii) Hazard communication. Requirements as specified in Sec.  
721.72(a) through (f), (g)(1), and (g)(5). For purposes of Sec.  
721.72(e), the concentration is set at 0.1%. For purposes of Sec.  
721.72(g)(1), this substance may cause: acute toxicity, skin 
irritation, eye irritation, genetic toxicity, carcinogenicity, and 
specific target organ toxicity. Alternative hazard and warning 
statements that meet the criteria of the Globally Harmonized System and 
OSHA Hazard Communication Standard may be used.
    (iii) Industrial, commercial, and consumer activities. Requirements 
as specified in Sec.  721.80(g) and (t). It is a significant new use to 
manufacture, process, or use the substance in any manner that generates 
a vapor, mist, aerosol, or dust.
    (iv) Disposal. It is a significant new use to dispose of the 
substance, or waste streams containing the substance, other than by 
hazardous waste incineration.
    (v) Release to water. Requirements as specified in Sec.  
721.90(a)(1), (b)(1), and (c)(1).
    (b) Specific requirements. The provisions of Subpart A of this part 
apply to this section except as modified by this paragraph (b).
    (1) Recordkeeping. Recordkeeping requirements as specified in Sec.  
721.125(a) through (k) are applicable to manufacturers, importers, and 
processors of this substance.
    (2) Limitation or revocation of certain notification requirements. 
The provisions of Sec.  721.185 apply to this section.


Sec.  721.12056  Aryl, polymer with formaldehyde, glycidyl ether, 
reaction products with amino alkyl-alkane diamine, cyclohexanediamine 
and alkylene (alkylcyclohexanamine) (generic).

    (a) Chemical substance and significant new uses subject to 
reporting. (1) The chemical substance identified generically as aryl, 
polymer with formaldehyde, glycidyl ether, reaction products with amino 
alkyl-alkane diamine, cyclohexanediamine and alkylene 
(alkylcyclohexanamine) (PMN P-22-49) is subject to reporting under this 
section for the significant new uses described in paragraph (a)(2) of 
this section. The requirements of this section do not apply to 
quantities of the substance after they have been completely reacted or 
cured.
    (2) The significant new uses are:
    (i) Protection in the workplace. Requirements as specified in Sec.  
721.63(a)(1) and (3) through (6), and (c). When determining which 
persons are reasonably likely to be exposed as required for Sec.  
721.63(a)(1) and (4), engineering control measures (e.g., enclosure or 
confinement of the operation, general and local ventilation) or 
administrative control measures (e.g., workplace policies and 
procedures) shall be considered and implemented to prevent exposure, 
where feasible. For purposes of Sec.  721.63(a)(5), respirators must 
provide a National Institute for Occupational Safety and Health (NIOSH) 
assigned protection factor (APF) of at least 1,000.
    (ii) Hazard communication. Requirements as specified in Sec.  
721.72(a) through (d), (f), (g)(1), (g)(3)(iii), and (g)(5). For 
purposes of Sec.  721.72(g)(1), this substance may cause: acute 
toxicity, skin irritation, eye irritation, skin corrosion, serious eye 
damage, respiratory sensitization, skin sensitization, genetic 
toxicity, reproductive toxicity, and specific target organ toxicity. 
Alternative hazard and warning statements that meet the criteria of the 
Globally Harmonized System and OSHA Hazard Communication Standard may 
be used.
    (iii) Industrial, commercial, and consumer activities. Requirements 
as specified in Sec.  721.80(o).
    (iv) Release to water. Requirements as specified in Sec.  
721.90(a)(4), (b)(4), and (c)(4), where N=2.
    (b) Specific requirements. The provisions of Subpart A of this part 
apply to this section except as modified by this paragraph (b).
    (1) Recordkeeping. Recordkeeping requirements as specified in Sec.  
721.125(a) through (i) and (k) are applicable to manufacturers, 
importers, and processors of this substance.
    (2) Limitation or revocation of certain notification requirements. 
The provisions of Sec.  721.185 apply to this section.


Sec.  721.12057  Alkene, alkoxy-, polymer with alkoxyalkene (generic).

    (a) Chemical substance and significant new uses subject to 
reporting.
    (1) The chemical substance identified generically as alkene, 
alkoxy-, polymer with alkoxyalkene (PMN P-22-50) is subject to 
reporting under this section for the significant new uses described in 
paragraph (a)(2) of this section.
    (2) The significant new uses are:
    (i) Protection in the workplace. Requirements as specified in Sec.  
721.63(a)(1) and (a)(3), (b), and (c). When determining which persons 
are reasonably likely to be exposed as required for Sec.  721.63(a)(1), 
engineering control measures (e.g., enclosure or confinement of the 
operation, general and local ventilation) or administrative control 
measures (e.g., workplace policies and procedures) shall be considered 
and implemented to prevent exposure, where feasible. For purposes of 
Sec.  721.63(b), the concentration is set at 1.0%.
    (ii) Hazard communication. Requirements as specified in Sec.  
721.72(a) through (f), (g)(1), (g)(3)(iii), and (g)(5). For purposes of 
Sec.  721.72(e), the concentration is set at 1.0%. For purposes of 
Sec.  721.72(g)(1), this substance may cause: skin irritation, eye 
irritation, and specific target organ toxicity. Alternative hazard and 
warning statements that meet the criteria of the Globally Harmonized 
System and OSHA Hazard Communication Standard may be used.
    (iii) Industrial, commercial, and consumer activities. Requirements 
as specified in Sec.  721.80(k) and (o). It is a significant new use to 
manufacture, process, or use the substance in any manner that results 
in inhalation exposure to the substance.
    (iv) Release to water. Requirements as specified in Sec.  
721.90(a)(1), (b)(1), and (c)(1).
    (b) Specific requirements. The provisions of Subpart A of this part

[[Page 33293]]

apply to this section except as modified by this paragraph (b).
    (1) Recordkeeping. Recordkeeping requirements as specified in Sec.  
721.125(a) through (i) and (k) are applicable to manufacturers, 
importers, and processors of this substance.
    (2) Limitation or revocation of certain notification requirements. 
The provisions of Sec.  721.185 apply to this section.


Sec.  721.12058  Methanesulfonamide, l,l,l-trifluoro-N-
[(trifluoromethyl)sulfonyl]-, sodium salt (1:1).

    (a) Chemical substance and significant new uses subject to 
reporting. (1) The chemical substance identified as Methanesulfonamide, 
l,l,l-trifluoro-N-[(trifluoromethyl)sulfonyl]-, sodium salt (1:1) (PMN 
P-22-58; CASRN 91742-21-1) is subject to reporting under this section 
for the significant new uses described in paragraph (a)(2) of this 
section. The requirements of this section do not apply to quantities of 
the substance after they have been incorporated into an article.
    (2) The significant new uses are:
    (i) Protection in the workplace. Requirements as specified in Sec.  
721.63(a)(1), (a)(3) through (6), (b), and (c). When determining which 
persons are reasonably likely to be exposed as required for Sec.  
721.63(a)(1) and (4), engineering control measures (e.g., enclosure or 
confinement of the operation, general and local ventilation) or 
administrative control measures (e.g., workplace policies and 
procedures) shall be considered and implemented to prevent exposure, 
where feasible. For purposes of Sec.  721.63(a)(5), respirators must 
provide a National Institute for Occupational Safety and Health (NIOSH) 
assigned protection factor (APF) of at least 50. For purposes of Sec.  
721.63(b), the concentration is set at 1.0%.
    (ii) Hazard communication. Requirements as specified in Sec.  
721.72(a) through (f), (g)(1), (g)(3)(iii), and (g)(5). For purposes of 
Sec.  721.72(e), the concentration is set at 1.0%. For purposes of 
Sec.  721.72(g)(1), this substance may cause: acute toxicity, serious 
eye damage, skin irritation, reproductive toxicity, and specific target 
organ toxicity. Alternative hazard and warning statements that meet the 
criteria of the Globally Harmonized System and OSHA Hazard 
Communication Standard may be used.
    (iii) Industrial, commercial, and consumer activities. Requirements 
as specified in Sec.  721.80(b) and (k). It is a significant new use to 
process the substance in any manner that generates a vapor, mist, 
aerosol, or dust that results in inhalation to workers. It is a 
significant new use to use the substance in an application method that 
generates a vapor, mist, aerosol, or dust that results in inhalation to 
workers. It is a significant new use to use the substance other than in 
the form of a liquid.
    (iv) Release to water. Requirements as specified in Sec.  
721.90(a)(4), (b)(4), and (c)(4), where N=100.
    (b) Specific requirements. The provisions of Subpart A of this part 
apply to this section except as modified by this paragraph (b).
    (1) Recordkeeping. Recordkeeping requirements as specified in Sec.  
721.125(a) through (i) and (k) are applicable to manufacturers, 
importers, and processors of this substance.
    (2) Limitation or revocation of certain notification requirements. 
The provisions of Sec.  721.185 apply to this section.


Sec.  721.12059  H-Isoindole-1,3(2H)-dione, 3a,4,7,7a-tetrahydro-2-(2-
hydroxyethyl)-.

    (a) Chemical substance and significant new uses subject to 
reporting. (1) The chemical substance identified as 1H-isoindole-
1,3(2H)-dione, 3a,4,7,7a-tetrahydro-2-(2-hydroxyethyl)- (PMN P-22-75; 
CASRN 15458-48-7) is subject to reporting under this section for the 
significant new uses described in paragraph (a)(2) of this section. The 
requirements of this section do not apply to quantities of the 
substance after they have been completely reacted or cured.
    (2) The significant new uses are:
    (i) Protection in the workplace. Requirements as specified in Sec.  
721.63(a)(1) and (3), (b), and (c). When determining which persons are 
reasonably likely to be exposed as required for Sec.  721.63(a)(1), 
engineering control measures (e.g., enclosure or confinement of the 
operation, general and local ventilation) or administrative control 
measures (e.g., workplace policies and procedures) shall be considered 
and implemented to prevent exposure, where feasible. For purposes of 
Sec.  721.63(b), the concentration is set at 1.0%.
    (ii) Hazard communication. Requirements as specified in Sec.  
721.72(a) through (f), (g)(1), (g)(3)(iii), and (g)(5). For purposes of 
Sec.  721.72(e), the concentration is set at 1.0%. For purposes of 
Sec.  721.72(g)(1), this substance may cause: acute toxicity, skin 
irritation, eye irritation, and specific target organ toxicity. 
Alternative hazard and warning statements that meet the criteria of the 
Globally Harmonized System and OSHA Hazard Communication Standard may 
be used.
    (iii) Industrial, commercial, and consumer activities. Requirements 
as specified in Sec.  721.80(f). It is a significant new use to 
manufacture the substance beyond an annual production volume of 3,000 
kilograms. It is a significant new use to use the substance other than 
as a monomer used to produce an unsaturated polyester resin.
    (b) Specific requirements. The provisions of Subpart A of this part 
apply to this section except as modified by this paragraph (b).
    (1) Recordkeeping. Recordkeeping requirements as specified in Sec.  
721.125(a) through (i) are applicable to manufacturers, importers, and 
processors of this substance.
    (2) Limitation or revocation of certain notification requirements. 
The provisions of Sec.  721.185 apply to this section.


Sec.  721.12060  Oxirane, 2-methyl-, polymer with oxirane, mono-
isoalkyl ethers, phosphates, salt (generic).

    (a) Chemical substance and significant new uses subject to 
reporting. (1) The chemical substance identified generically as 
oxirane, 2-methyl-, polymer with oxirane, mono-isoalkyl ethers, 
phosphates, salt (PMN P-22-78) is subject to reporting under this 
section for the significant new uses described in paragraph (a)(2) of 
this section.
    (2) The significant new uses are:
    (i) Protection in the workplace. Requirements as specified in Sec.  
721.63(a)(1) and (3), (b), and (c). When determining which persons are 
reasonably likely to be exposed as required for Sec.  721.63(a)(1), 
engineering control measures (e.g., enclosure or confinement of the 
operation, general and local ventilation) or administrative control 
measures (e.g., workplace policies and procedures) shall be considered 
and implemented to prevent exposure, where feasible. For purposes of 
Sec.  721.63(b), the concentration is set at 1.0%.
    (ii) Hazard communication. Requirements as specified in Sec.  
721.72(a) through (f), (g)(1), (g)(3)(iii), and (g)(5). For purposes of 
Sec.  721.72(e), the concentration is set at 1.0%. For purposes of 
Sec.  721.72(g)(1), this substance may cause: skin irritation and 
specific target organ toxicity. Alternative hazard and warning 
statements that meet the criteria of the Globally Harmonized System and 
OSHA Hazard Communication Standard may be used.
    (iii) Industrial, commercial, and consumer activities. It is a 
significant new use to manufacture or process the substance in any 
manner that generates a vapor, mist, aerosol, or dust. It is a

[[Page 33294]]

significant new use to process for use or use the substance other than 
as a dispersing agent for pesticide formulations.
    (iv) Release to water. Requirements as specified in Sec.  
721.90(a)(4), (b)(4), and (c)(4), where N=23.
    (b) Specific requirements. The provisions of Subpart A of this part 
apply to this section except as modified by this paragraph (b).
    (1) Recordkeeping. Recordkeeping requirements as specified in Sec.  
721.125(a) through (i) and (k) are applicable to manufacturers, 
importers, and processors of this substance.
    (2) Limitation or revocation of certain notification requirements. 
The provisions of Sec.  721.185 apply to this section.


Sec.  721.12061  Poly(oxy-1,2-ethanediyl), .alpha.-(2-
aminoethyl)-.omega.-(2-aminoethoxy)- and Poly(oxy-1,2-ethanediyl), 
.alpha.,.alpha.',-(iminodi-2,1- ethanediyl)bis[.omega.-(2-
aminoethoxy)-.

    (a) Chemical substance and significant new uses subject to 
reporting. (1) The chemical substance identified as poly(oxy-1,2-
ethanediyl), .alpha.-(2-aminoethyl)-.omega.-(2-aminoethoxy)- and 
poly(oxy-1,2-ethanediyl), .alpha.,.alpha.',-(iminodi-2,1- 
ethanediyl)bis[.omega.-(2-aminoethoxy)- (PMN P-22-80; CAS Nos. 24991-
53-5 and 90350-34-8) is subject to reporting under this section for the 
significant new uses described in paragraph (a)(2) of this section. The 
requirements of this section do not apply to quantities of the 
substance after they have been completely reacted or destroyed.
    (2) The significant new uses are:
    (i) Protection in the workplace. Requirements as specified in Sec.  
721.63(a)(1) and (3), and (c). When determining which persons are 
reasonably likely to be exposed as required for Sec.  721.63(a)(1), 
engineering control measures (e.g., enclosure or confinement of the 
operation, general and local ventilation) or administrative control 
measures (e.g., workplace policies and procedures) shall be considered 
and implemented to prevent exposure, where feasible.
    (ii) Hazard communication. Requirements as specified in Sec.  
721.72(a) through (d), (f), (g)(1), (g)(3)(iii), and (g)(5). For 
purposes of Sec.  721.72(g)(1), this substance may cause: acute 
toxicity, skin corrosion, serious eye damage, and skin sensitization. 
Alternative hazard and warning statements that meet the criteria of the 
Globally Harmonized System and OSHA Hazard Communication Standard may 
be used.
    (iii) Industrial, commercial, and consumer activities. It is a 
significant new use to manufacture, process, or use the substance in 
any manner that results in inhalation exposure to the substance.
    (iv) Release to water. Requirements as specified in Sec.  
721.90(a)(4), (b)(4), and (c)(4), where N=0.7.
    (b) Specific requirements. The provisions of Subpart A of this part 
apply to this section except as modified by this paragraph (b).
    (1) Recordkeeping. Recordkeeping requirements as specified in Sec.  
721.125(a) through (i) and (k) are applicable to manufacturers, 
importers, and processors of this substance.
    (2) Limitation or revocation of certain notification requirements. 
The provisions of Sec.  721.185 apply to this section.


Sec.  721.12062  Alkenoic acid, alkyl, carbopolycyclic alkyl ester, 
polymer with trihalo (trihaloalkyl) alkyl alkyl alkenoate (generic).

    (a) Chemical substance and significant new uses subject to 
reporting. (1) The chemical substance identified generically as 
alkenoic acid, alkyl, carbopolycyclic alkyl ester, polymer with trihalo 
(trihaloalkyl) alkyl alkyl alkenoate (PMN P-22-82) is subject to 
reporting under this section for the significant new uses described in 
paragraph (a)(2) of this section. The requirements of this section do 
not apply to quantities of the substance after they have been entrained 
in dried photoresist.
    (2) The significant new uses are:
    (i) Protection in the workplace. Requirements as specified in Sec.  
721.63(a)(1) and (3), (b), and (c). When determining which persons are 
reasonably likely to be exposed as required for Sec.  721.63(a)(1), 
engineering control measures (e.g., enclosure or confinement of the 
operation, general and local ventilation) or administrative control 
measures (e.g., workplace policies and procedures) shall be considered 
and implemented to prevent exposure, where feasible. For purposes of 
Sec.  721.63(b), the concentration is set at 1.0%.
    (ii) Hazard communication. Requirements as specified in Sec.  
721.72(a) through (f), (g)(1), and (g)(5). For purposes of Sec.  
721.72(e), the concentration is set at 1.0%. For purposes of Sec.  
721.72(g)(1), this substance may cause: reproductive toxicity and 
specific target organ toxicity. Alternative hazard and warning 
statements that meet the criteria of the Globally Harmonized System and 
OSHA Hazard Communication Standard may be used.
    (iii) Industrial, commercial, and consumer activities. Requirements 
as specified in Sec.  721.80(k), (v)(1), (2) and (4), (w)(1), (2) and 
(4), and (x)(1), (2) and (4). It is a significant new use to 
manufacture the substance other than by import into the United States 
(i.e., no domestic manufacture) in a liquid formulation.
    (iv) Disposal. Requirements as specified in Sec.  721.85(a)(1), 
(b)(1), and (c)(1).
    (v) Release to water. Requirements as specified in Sec.  
721.90(a)(1), (b)(1), and (c)(1).
    (b) Specific requirements. The provisions of Subpart A of this part 
apply to this section except as modified by this paragraph (b).
    (1) Recordkeeping. Recordkeeping requirements as specified in Sec.  
721.125(a) through (k) are applicable to manufacturers, importers, and 
processors of this substance.
    (2) Limitation or revocation of certain notification requirements. 
The provisions of Sec.  721.185 apply to this section.


Sec.  721.12063  1-Propene, 1,1,3,3-tetrachloro-.

    (a) Chemical substance and significant new uses subject to 
reporting. (1) The chemical substance identified as 1-propene, 1,1,3,3-
tetrachloro- (PMN P-22-121; CASRN 18611-43-3) is subject to reporting 
under this section for the significant new uses described in paragraph 
(a)(2) of this section. The requirements of this section do not apply 
to quantities of the substance after they have been completely reacted.
    (2) The significant new uses are:
    (i) Protection in the workplace. Requirements as specified in Sec.  
721.63(a)(1), (a)(3) through (6), and (c). When determining which 
persons are reasonably likely to be exposed as required for Sec.  
721.63(a)(1) and (4), engineering control measures (e.g., enclosure or 
confinement of the operation, general and local ventilation) or 
administrative control measures (e.g., workplace policies and 
procedures) shall be considered and implemented to prevent exposure, 
where feasible. For purposes of Sec.  721.63(a)(5), respirators must 
provide a National Institute for Occupational Safety and Health (NIOSH) 
assigned protection factor (APF) of at least 50.
    (ii) Hazard communication. Requirements as specified in Sec.  
721.72(a) through (d), (f), (g)(1), (g)(3)(iii), and (g)(5). For 
purposes of Sec.  721.72(g)(1), this substance may cause: acute 
toxicity, skin irritation, serious eye damage, skin sensitization, 
genetic toxicity, carcinogenicity, and specific target organ toxicity. 
Alternative hazard and warning statements that meet the

[[Page 33295]]

criteria of the Globally Harmonized System and OSHA Hazard 
Communication Standard may be used.
    (iii) Industrial, commercial, and consumer activities. Requirements 
as specified in Sec.  721.80(f) and (k). It is a significant new use to 
process, use, load, or unload the substance unless under a gas (e.g., 
nitrogen) blanket or in a closed system except that sampling may occur 
outside the closed system resulting in exposures.
    (iv) Release to water. Requirements as specified in Sec.  
721.90(a)(4), (b)(4), and (c)(4), where N=0.15.
    (b) Specific requirements. The provisions of Subpart A of this part 
apply to this section except as modified by this paragraph (b).
    (1) Recordkeeping. Recordkeeping requirements as specified in Sec.  
721.125(a) through (i) and (k) are applicable to manufacturers, 
importers, and processors of this substance.
    (2) Limitation or revocation of certain notification requirements. 
The provisions of Sec.  721.185 apply to this section.


Sec.  721.12064  Alkanoic acid, trialkyl-, diester with carbomonocycle 
bis(alkyleneoxy)]bis[alkanediol] (generic).

    (a) Chemical substance and significant new uses subject to 
reporting. (1) The chemical substance identified generically as 
alkanoic acid, trialkyl-, diester with carbomonocycle 
bis(alkyleneoxy)]bis[alkanediol] (PMN P-22-145) is subject to reporting 
under this section for the significant new uses described in paragraph 
(a)(2) of this section.
    (2) The significant new uses are:
    (i) Protection in the workplace. Requirements as specified in Sec.  
721.63(a)(1) and (3), (b), and (c). When determining which persons are 
reasonably likely to be exposed as required for Sec.  721.63(a)(1), 
engineering control measures (e.g., enclosure or confinement of the 
operation, general and local ventilation) or administrative control 
measures (e.g., workplace policies and procedures) shall be considered 
and implemented to prevent exposure, where feasible. For purposes of 
Sec.  721.63(b), the concentration is set at 1.0%.
    (ii) Hazard communication. Requirements as specified in Sec.  
721.72(a) through (f), (g)(1), (g)(3)(iii), and (g)(5). For purposes of 
Sec.  721.72(e), the concentration is set at 1.0%. For purposes of 
Sec.  721.72(g)(1), this substance may cause: acute toxicity, 
reproductive toxicity, and specific target organ toxicity. Alternative 
hazard and warning statements that meet the criteria of the Globally 
Harmonized System and OSHA Hazard Communication Standard may be used.
    (iii) Industrial, commercial, and consumer activities. Requirements 
as specified in Sec.  721.80(o). It is a significant new use to use the 
substance in any manner that may generate a spray, mist, vapor, or 
aerosol containing the substance unless the concentration of the 
substance is less than 5.7% by weight.
    (iv) Disposal. Requirements as specified in Sec.  721.85(a)(1), 
(b)(1), and (c)(1).
    (v) Release to water. Requirements as specified in Sec.  
721.90(a)(1), (b)(1), and (c)(1).
    (b) Specific requirements. The provisions of Subpart A of this part 
apply to this section except as modified by this paragraph (b).
    (1) Recordkeeping. Recordkeeping requirements as specified in Sec.  
721.125(a) through (k) are applicable to manufacturers, importers, and 
processors of this substance.
    (2) Limitation or revocation of certain notification requirements. 
The provisions of Sec.  721.185 apply to this section.


Sec.  721.12065  Silsesquioxanes, Me vinyl, hydroxy and methoxy and 
[(trimethylsilyl)oxy]-terminated.

    (a) Chemical substance and significant new uses subject to 
reporting. (1) The chemical substance identified as silsesquioxanes, Me 
vinyl, hydroxy and methoxy and [(trimethylsilyl)oxy]- terminated (PMN 
P-22-175; CASRN 2450324-50-0) is subject to reporting under this 
section for the significant new uses described in paragraph (a)(2) of 
this section.
    (2) The significant new uses are:
    (i) Protection in the workplace. Requirements as specified in Sec.  
721.63(a)(1), (a)(3) through (6), (b), and (c). When determining which 
persons are reasonably likely to be exposed as required for Sec.  
721.63(a)(1) and (4), engineering control measures (e.g., enclosure or 
confinement of the operation, general and local ventilation) or 
administrative control measures (e.g., workplace policies and 
procedures) shall be considered and implemented to prevent exposure, 
where feasible. For purposes of Sec.  721.63(a)(5), respirators must 
provide a National Institute for Occupational Safety and Health (NIOSH) 
assigned protection factor (APF) of at least 10. For purposes of Sec.  
721.63(b), the concentration is set at 1.0%.
    (ii) Hazard communication. Requirements as specified in Sec.  
721.72(a) through (f), (g)(1), (g)(3)(iii), and (g)(5). For purposes of 
Sec.  721.72(e), the concentration is set at 1.0%. For purposes of 
Sec.  721.72(g)(1), this substance may cause: skin irritation, eye 
irritation, and specific target organ toxicity. Alternative hazard and 
warning statements that meet the criteria of the Globally Harmonized 
System and OSHA Hazard Communication Standard may be used.
    (iii) Industrial, commercial, and consumer activities. Requirements 
as specified in Sec.  721.80(f). It is a significant new use to use the 
substance unless the concentration of the substance does not exceed 10% 
by weight in formulation.
    (iv) Release to water. Requirements as specified in Sec.  
721.90(a)(4), (b)(4), and (c)(4), where N=7.
    (b) Specific requirements. The provisions of Subpart A of this part 
apply to this section except as modified by this paragraph (b).
    (1) Recordkeeping. Recordkeeping requirements as specified in Sec.  
721.125(a) through (i) and (k) are applicable to manufacturers, 
importers, and processors of this substance.
    (2) Limitation or revocation of certain notification requirements. 
The provisions of Sec.  721.185 apply to this section.


Sec.  721.12066  Vegetable oil, polymer with pimelin ketone, 
oxymethylene and polymethylenepolyphenylene isocyanate (generic).

    (a) Chemical substance and significant new uses subject to 
reporting. (1) The chemical substance identified generically as 
vegetable oil, polymer with pimelin ketone, oxymethylene and 
polymethylenepolyphenylene isocyanate (PMN P-23-18) is subject to 
reporting under this section for the significant new uses described in 
paragraph (a)(2) of this section. The requirements of this section do 
not apply to quantities of the substance after they have been 
completely reacted or cured.
    (2) The significant new uses are:
    (i) Protection in the workplace. Requirements as specified in Sec.  
721.63(a)(1) and (3), and (c). When determining which persons are 
reasonably likely to be exposed as required for Sec.  721.63(a)(1), 
engineering control measures (e.g., enclosure or confinement of the 
operation, general and local ventilation) or administrative control 
measures (e.g., workplace policies and procedures) shall be considered 
and implemented to prevent exposure, where feasible.
    (ii) Hazard communication. Requirements as specified in Sec.  
721.72(a) through (d), (f), (g)(1), and (g)(5). For purposes of Sec.  
721.72(g)(1), this substance may cause: acute toxicity,

[[Page 33296]]

skin irritation, eye irritation, respiratory sensitization, skin 
sensitization, genetic toxicity, carcinogenicity, reproductive 
toxicity, and specific target organ toxicity. Alternative hazard and 
warning statements that meet the criteria of the Globally Harmonized 
System and OSHA Hazard Communication Standard may be used.
    (iii) Industrial, commercial, and consumer activities. Requirements 
as specified in Sec.  721.80(o). It is a significant new use to 
manufacture, process, or use the substance in any manner that results 
in inhalation exposure to the substance.
    (b) Specific requirements. The provisions of Subpart A of this part 
apply to this section except as modified by this paragraph (b).
    (1) Recordkeeping. Recordkeeping requirements as specified in Sec.  
721.125(a) through (i) are applicable to manufacturers, importers, and 
processors of this substance.
    (2) Limitation or revocation of certain notification requirements. 
The provisions of Sec.  721.185 apply to this section.


Sec.  721.12067  Silsesquioxanes, 3-mercaptopropyl, polymers with 
silicic acid (H4SiO4) tetra-Et ester, [(trimethylsilyl)oxy]-terminated.

    (a) Chemical substance and significant new uses subject to 
reporting. (1) The chemical substance identified as silsesquioxanes, 3-
mercaptopropyl, polymers with silicic acid (H4SiO4) tetra-Et ester, 
[(trimethylsilyl)oxy]-terminated (PMN P-23-20; CASRN 2796383-42-9) is 
subject to reporting under this section for the significant new uses 
described in paragraph (a)(2) of this section. The requirements of this 
section do not apply to quantities of the substance after they have 
been completely reacted or cured.
    (2) The significant new uses are:
    (i) Protection in the workplace. Requirements as specified in Sec.  
721.63(a)(1) and (3), and (c). When determining which persons are 
reasonably likely to be exposed as required for Sec.  721.63(a)(1), 
engineering control measures (e.g., enclosure or confinement of the 
operation, general and local ventilation) or administrative control 
measures (e.g., workplace policies and procedures) shall be considered 
and implemented to prevent exposure, where feasible.
    (ii) Hazard communication. Requirements as specified in Sec.  
721.72(a) through (d), (f), (g)(1), (g)(3)(iii), and (g)(5). For 
purposes of Sec.  721.72(g)(1), this substance may cause: skin 
sensitization and specific target organ toxicity. Alternative hazard 
and warning statements that meet the criteria of the Globally 
Harmonized System and OSHA Hazard Communication Standard may be used.
    (iii) Industrial, commercial, and consumer activities. Requirements 
as specified in Sec.  721.80(k). It is a significant new use to 
manufacture, process, or use the substance in any manner that results 
inhalation exposure.
    (iv) Release to water. Requirements as specified in Sec.  
721.90(a)(4), (b)(4), and (c)(4), where N=3.
    (b) Specific requirements. The provisions of Subpart A of this part 
apply to this section except as modified by this paragraph (b).
    (1) Recordkeeping. Recordkeeping requirements as specified in Sec.  
721.125(a) through (i) and (k) are applicable to manufacturers, 
importers, and processors of this substance.
    (2) Limitation or revocation of certain notification requirements. 
The provisions of Sec.  721.185 apply to this section.


Sec.  721.12068  Castor oil, polymer with dicyclopentadiene, maleic 
anhydride, 2-methyl-1,3-propanediol, 3a,4,7,7a-tetrahydro-2-(2-
hydroxyethyl)-1H-isoindole-1,3(2H)-dione and triethylene glycol.

    (a) Chemical substance and significant new uses subject to 
reporting. (1) The chemical substance identified as castor oil, polymer 
with dicyclopentadiene, maleic anhydride, 2-methyl-1,3-propanediol, 
3a,4,7,7a-tetrahydro-2-(2-hydroxyethyl)-1H-isoindole-1,3(2H)-dione and 
triethylene glycol (PMN P-23-36; CASRN 2794200-69-2) is subject to 
reporting under this section for the significant new uses described in 
paragraph (a)(2) of this section. The requirements of this section do 
not apply to quantities of the substance after they have been 
completely reacted or cured.
    (2) The significant new uses are:
    (i) Protection in the workplace. Requirements as specified in Sec.  
721.63(a)(1) and (3), (b), and (c). When determining which persons are 
reasonably likely to be exposed as required for Sec.  721.63(a)(1), 
engineering control measures (e.g., enclosure or confinement of the 
operation, general and local ventilation) or administrative control 
measures (e.g., workplace policies and procedures) shall be considered 
and implemented to prevent exposure, where feasible. For purposes of 
Sec.  721.63(b), the concentration is set at 1.0%.
    (ii) Hazard communication. Requirements as specified in Sec.  
721.72(a) through (f), (g)(1), (g)(3)(iii), and (g)(5). For purposes of 
Sec.  721.72(e), the concentration is set at 1.0%. For purposes of 
Sec.  721.72(g)(1), this substance may cause: skin irritation, eye 
irritation, and specific target organ toxicity. Alternative hazard and 
warning statements that meet the criteria of the Globally Harmonized 
System and OSHA Hazard Communication Standard may be used.
    (iii) Industrial, commercial, and consumer activities. Requirements 
as specified in Sec.  721.80(o). It is a significant new use to 
manufacture, process, or use the substance in any manner that generates 
a vapor, mist, aerosol, or dust.
    (iv) Release to water. Requirements as specified in Sec.  
721.90(a)(4), (b)(4), and (c)(4), where N=27.
    (b) Specific requirements. The provisions of Subpart A of this part 
apply to this section except as modified by this paragraph (b).
    (1) Recordkeeping. Recordkeeping requirements as specified in Sec.  
721.125(a) through (i) and (k) are applicable to manufacturers, 
importers, and processors of this substance.
    (2) Limitation or revocation of certain notification requirements. 
The provisions of Sec.  721.185 apply to this section.


Sec.  721.12069  Monoaromatic cyclic alkylene sulfonium fluoroalkyl 
sulfonic acid salt (generic).

    (a) Chemical substance and significant new uses subject to 
reporting. (1) The chemical substance identified generically as 
monoaromatic cyclic alkylene sulfonium fluoroalkyl sulfonic acid salt 
(PMN P-23-37) is subject to reporting under this section for the 
significant new uses described in paragraph (a)(2) of this section. The 
requirements of this section do not apply to quantities of the 
substance after they have been completely reacted or adhered (during 
photolithographic processes) onto a semiconductor wafer surface or 
similar manufactured article used in the production of semiconductor 
technologies.
    (2) The significant new uses are:
    (i) Protection in the workplace. Requirements as specified in Sec.  
721.63(a)(1), (a)(2)(i) and (iii), (a)(3), and (c). When determining 
which persons are reasonably likely to be exposed as required for Sec.  
721.63(a)(1), engineering control measures (e.g., enclosure or 
confinement of the operation, general and local ventilation) or 
administrative control measures (e.g., workplace policies and 
procedures) shall be considered and implemented to prevent exposure, 
where feasible.
    (ii) Hazard communication. Requirements as specified in Sec.  
721.72(a) through (f), (g)(1), (g)(2)(i) through (iii)

[[Page 33297]]

and (v), (g)(3)(i) and (ii), and (g)(5). For purposes of Sec.  
721.72(e), the concentration is set at 1.0%. For purposes of Sec.  
721.72(g)(1), this substance may cause: acute toxicity, skin 
irritation, skin sensitization, genetic toxicity, and specific target 
organ toxicity. Alternative hazard and warning statements that meet the 
criteria of the Globally Harmonized System and OSHA Hazard 
Communication Standard may be used.
    (iii) Industrial, commercial, and consumer activities. Requirements 
as specified in Sec.  721.80(f), (k), and (t). It is a significant new 
use to import the substance other than in solution, unless in sealed 
containers weighing 5 kilograms or less. It is a significant new use to 
modify the processing or use of the substance in any way that generates 
dust, mist, or aerosol in a non-enclosed process. It is a significant 
new use to manufacture the substance longer than 18 months.
    (b) Specific requirements. The provisions of Subpart A of this part 
apply to this section except as modified by this paragraph (b).
    (1) Recordkeeping. Recordkeeping requirements as specified in Sec.  
721.125(a) through (i) are applicable to manufacturers, importers, and 
processors of this substance.
    (2) Limitation or revocation of certain notification requirements. 
The provisions of Sec.  721.185 apply to this section.


Sec.  721.12070  Monoaromatic cyclic alkylene sulfonium fluoroalkyl 
sulfonic acid salt (generic).

    (a) Chemical substance and significant new uses subject to 
reporting. (1) The chemical substance identified generically as 
monoaromatic cyclic alkylene sulfonium fluoroalkyl sulfonic acid salt 
(PMN P-23-44) is subject to reporting under this section for the 
significant new uses described in paragraph (a)(2) of this section. The 
requirements of this section do not apply to quantities of the 
substance after they have been completely reacted or adhered (during 
photolithographic processes) onto a semiconductor wafer surface or 
similar manufactured article used in the production of semiconductor 
technologies.
    (2) The significant new uses are:
    (i) Protection in the workplace. Requirements as specified in Sec.  
721.63(a)(1), (a)(2)(i) and (iii), (a)(3), and (c). When determining 
which persons are reasonably likely to be exposed as required for Sec.  
721.63(a)(1), engineering control measures (e.g., enclosure or 
confinement of the operation, general and local ventilation) or 
administrative control measures (e.g., workplace policies and 
procedures) shall be considered and implemented to prevent exposure, 
where feasible.
    (ii) Hazard communication. Requirements as specified in Sec.  
721.72(a) through (f), (g)(1), (g)(2)(i) through (iii) and (v), 
(g)(3)(i) and (ii), and (g)(5). For purposes of Sec.  721.72(e), the 
concentration is set at 1.0%. For purposes of Sec.  721.72(g)(1), this 
substance may cause: acute toxicity, skin irritation, serious eye 
damage, reproductive toxicity, skin sensitization, genetic toxicity, 
and specific target organ toxicity. Alternative hazard and warning 
statements that meet the criteria of the Globally Harmonized System and 
OSHA Hazard Communication Standard may be used.
    (iii) Industrial, commercial, and consumer activities. Requirements 
as specified in Sec.  721.80(f), (k), and (t). It is a significant new 
use to import the substance other than in solution, unless in sealed 
containers weighing 5 kilograms or less. It is a significant new use to 
modify the processing or use of the substance in any way that generates 
dust, mist, or aerosol in a non-enclosed process. It is a significant 
new use to manufacture the substance longer than 18 months.
    (b) Specific requirements. The provisions of Subpart A of this part 
apply to this section except as modified by this paragraph (b).
    (1) Recordkeeping. Recordkeeping requirements as specified in Sec.  
721.125(a) through (i) are applicable to manufacturers, importers, and 
processors of this substance.
    (2) Limitation or revocation of certain notification requirements. 
The provisions of Sec.  721.185 apply to this section.


Sec.  721.12071  Aromatic sulfonium tricyclo fluoroalkyl sulfonic acid 
salt (generic).

    (a) Chemical substance and significant new uses subject to 
reporting. (1) The chemical substance identified generically as 
aromatic sulfonium tricyclo fluoroalkyl sulfonic acid salt (PMN P-23-
80) is subject to reporting under this section for the significant new 
uses described in paragraph (a)(2) of this section. The requirements of 
this section do not apply to quantities of the substance after they 
have been completely reacted or adhered (during photolithographic 
processes) onto a semiconductor wafer surface or similar manufactured 
article used in the production of semiconductor technologies.
    (2) The significant new uses are:
    (i) Protection in the workplace. Requirements as specified in Sec.  
721.63(a)(1), (a)(2)(i) and (iii), (a)(3), and (c). When determining 
which persons are reasonably likely to be exposed as required for Sec.  
721.63(a)(1), engineering control measures (e.g., enclosure or 
confinement of the operation, general and local ventilation) or 
administrative control measures (e.g., workplace policies and 
procedures) shall be considered and implemented to prevent exposure, 
where feasible.
    (ii) Hazard communication. Requirements as specified in Sec.  
721.72(a) through (f), (g)(1), (g)(2)(i) through (iii) and (v), 
(g)(3)(i) and (ii), and (5). For purposes of Sec.  721.72(e), the 
concentration is set at 1.0%. For purposes of Sec.  721.72(g)(1), this 
substance may cause: acute toxicity, skin irritation, serious eye 
damage, skin sensitization, genetic toxicity, and specific target organ 
toxicity. Alternative hazard and warning statements that meet the 
criteria of the Globally Harmonized System and OSHA Hazard 
Communication Standard may be used.
    (iii) Industrial, commercial, and consumer activities. Requirements 
as specified in Sec.  721.80(f), (k), and (t). It is a significant new 
use to import the substance other than in solution, unless in sealed 
containers weighing 5 kilograms or less. It is a significant new use to 
modify the processing or use of the substance in any way that generates 
dust, mist, or aerosol in a non-enclosed process. It is a significant 
new use to manufacture the substance longer than 18 months.
    (b) Specific requirements. The provisions of Subpart A of this part 
apply to this section except as modified by this paragraph (b).
    (1) Recordkeeping. Recordkeeping requirements as specified in Sec.  
721.125(a) through (i) are applicable to manufacturers, importers, and 
processors of this substance.
    (2) Limitation or revocation of certain notification requirements. 
The provisions of Sec.  721.185 apply to this section.


Sec.  721.12072  Aromatic dibenzothiophenium fluoroalkyl carbopolycycle 
sulfonic acid salt (generic).

    (a) Chemical substance and significant new uses subject to 
reporting. (1) The chemical substance identified generically as 
aromatic dibenzothiophenium fluoroalkyl carbopolycycle sulfonic acid 
salt (PMN P-23-93) is subject to reporting under this section for the 
significant new uses described in paragraph (a)(2) of this section. The 
requirements of this section do not apply to quantities of the 
substance after they have been

[[Page 33298]]

completely reacted or adhered (during photolithographic processes) onto 
a semiconductor wafer surface or similar manufactured article used in 
the production of semiconductor technologies.
    (2) The significant new uses are:
    (i) Protection in the workplace. Requirements as specified in Sec.  
721.63(a)(1), (a)(2)(i) and (iii), (a)(3), and (c). When determining 
which persons are reasonably likely to be exposed as required for Sec.  
721.63(a)(1), engineering control measures (e.g., enclosure or 
confinement of the operation, general and local ventilation) or 
administrative control measures (e.g., workplace policies and 
procedures) shall be considered and implemented to prevent exposure, 
where feasible.
    (ii) Hazard communication. Requirements as specified in Sec.  
721.72(a) through (f), (g)(1), (g)(2)(i) through (iii) and (v), 
(g)(3)(i) and (ii), and (g)(5). For purposes of Sec.  721.72(e), the 
concentration is set at 1.0%. For purposes of Sec.  721.72(g)(1), this 
substance may cause: acute toxicity, skin irritation, serious eye 
damage, reproductive toxicity, skin sensitization, genetic toxicity, 
and specific target organ toxicity. Alternative hazard and warning 
statements that meet the criteria of the Globally Harmonized System and 
OSHA Hazard Communication Standard may be used.
    (iii) Industrial, commercial, and consumer activities. Requirements 
as specified in Sec.  721.80(f), (k), and (t). It is a significant new 
use to import the substance other than in solution, unless in sealed 
containers weighing 5 kilograms or less. It is a significant new use to 
modify the processing or use of the substance in any way that generates 
dust, mist, or aerosol in a non-enclosed process. It is a significant 
new use to manufacture the substance longer than 18 months.
    (b) Specific requirements. The provisions of Subpart A of this part 
apply to this section except as modified by this paragraph (b).
    (1) Recordkeeping. Recordkeeping requirements as specified in Sec.  
721.125(a) through (i) are applicable to manufacturers, importers, and 
processors of this substance.
    (2) Limitation or revocation of certain notification requirements. 
The provisions of Sec.  721.185 apply to this section.


Sec.  721.12073  Alkanediol, substituted, polymer with 
diisocyanatoalkane, substituted heterocycle-modified (generic).

    (a) Chemical substance and significant new uses subject to 
reporting. (1) The chemical substance identified generically as 
alkanediol, substituted, polymer with diisocyanatoalkane, substituted 
heterocycle-modified (PMN P-23-64) is subject to reporting under this 
section for the significant new uses described in paragraph (a)(2) of 
this section. The requirements of this section do not apply to 
quantities of the substance after they have been completely reacted or 
cured.
    (2) The significant new uses are:
    (i) Protection in the workplace. Requirements as specified in Sec.  
721.63(a)(1) and (3), and (c). When determining which persons are 
reasonably likely to be exposed as required for Sec.  721.63(a)(1), 
engineering control measures (e.g., enclosure or confinement of the 
operation, general and local ventilation) or administrative control 
measures (e.g., workplace policies and procedures) shall be considered 
and implemented to prevent exposure, where feasible.
    (ii) Hazard communication. Requirements as specified in Sec.  
721.72(a) through (d), (f), (g)(1), and (g)(5). For purposes of Sec.  
721.72(g)(1), this substance may cause: skin sensitization and specific 
target organ toxicity. Alternative hazard and warning statements that 
meet the criteria of the Globally Harmonized System and OSHA Hazard 
Communication Standard may be used.
    (iii) Industrial, commercial, and consumer activities. Requirements 
as specified in Sec.  721.80(o), and (y)(1) and (2). It is a 
significant new use to manufacture or process the substance in any 
manner that generates a vapor, mist, aerosol, or dust.
    (b) Specific requirements. The provisions of Subpart A of this part 
apply to this section except as modified by this paragraph (b).
    (1) Recordkeeping. Recordkeeping requirements as specified in Sec.  
721.125(a) through (i) are applicable to manufacturers, importers, and 
processors of this substance.
    (2) Limitation or revocation of certain notification requirements. 
The provisions of Sec.  721.185 apply to this section.


Sec.  721.12074  Halosubstituted carbopolycycle, polymer with 
substituted carbomonocycles and oxybis[alkanol] (generic).

    (a) Chemical substance and significant new uses subject to 
reporting. (1) The chemical substance identified generically as 
halosubstituted carbopolycycle, polymer with substituted 
carbomonocycles and oxybis[alkanol] (PMN P-23-72) is subject to 
reporting under this section for the significant new uses described in 
paragraph (a)(2) of this section. The requirements of this section do 
not apply to quantities of the substance after they have been 
completely reacted or cured.
    (2) The significant new uses are:
    (i) Protection in the workplace. Requirements as specified in Sec.  
721.63(a)(1), (a)(3) through (6), (b), and (c). When determining which 
persons are reasonably likely to be exposed as required for Sec.  
721.63(a)(1) and (a)(4), engineering control measures (e.g., enclosure 
or confinement of the operation, general and local ventilation) or 
administrative control measures (e.g., workplace policies and 
procedures) shall be considered and implemented to prevent exposure, 
where feasible. For purposes of Sec.  721.63(a)(5), respirators must 
provide a National Institute for Occupational Safety and Health (NIOSH) 
assigned protection factor (APF) of at least 10. For purposes of Sec.  
721.63(b), the concentration is set at 0.1%.
    (ii) Hazard communication. Requirements as specified in Sec.  
721.72(a) through (f), (g)(1), (g)(3)(iii), and (g)(5). For purposes of 
Sec.  721.72(e), the concentration is set at 0.1%. For purposes of 
Sec.  721.72(g)(1), this substance may cause: genetic toxicity, 
carcinogenicity, and specific target organ toxicity. Alternative hazard 
and warning statements that meet the criteria of the Globally 
Harmonized System and OSHA Hazard Communication Standard may be used.
    (iii) Industrial, commercial, and consumer activities. Requirements 
as specified in Sec.  721.80(o). It is a significant new use to process 
for use or use the substance other than in an enclosed roll-coating 
lithographic printing machine. It is a significant new use to process 
for use or use the substance at a concentration in the final 
formulation that exceeds 40% by weight for a coating application.
    (iv) Disposal. Requirements as specified in Sec.  721.85(a)(2), 
(b)(2), and (c)(2).
    (v) Release to water. Requirements as specified in Sec.  
721.90(a)(1), (b)(1), and (c)(1).
    (b) Specific requirements. The provisions of Subpart A of this part 
apply to this section except as modified by this paragraph (b).
    (1) Recordkeeping. Recordkeeping requirements as specified in Sec.  
721.125(a) through (k) are applicable to manufacturers, importers, and 
processors of this substance.
    (2) Limitation or revocation of certain notification requirements. 
The provisions of Sec.  721.185 apply to this section.

[[Page 33299]]

Sec.  721.12075  Polymer of benzenedicarboxylic acid, substituted-
benzenedicarboxylic acid, branched-alkyldiol, alkyldiol and 
triisocyanate (generic).

    (a) Chemical substance and significant new uses subject to 
reporting. (1) The chemical substance identified generically as polymer 
of benzenedicarboxylic acid, substituted-benzenedicarboxylic acid, 
branched-alkyldiol, alkyldiol and triisocyanate (PMN P-23-94) is 
subject to reporting under this section for the significant new uses 
described in paragraph (a)(2) of this section. The requirements of this 
section do not apply to quantities of the substance after they have 
been completely reacted or cured.
    (2) The significant new uses are:
    (i) Protection in the workplace. Requirements as specified in Sec.  
721.63(a)(1) and (3), and (c). When determining which persons are 
reasonably likely to be exposed as required for Sec.  721.63(a)(1), 
engineering control measures (e.g., enclosure or confinement of the 
operation, general and local ventilation) or administrative control 
measures (e.g., workplace policies and procedures) shall be considered 
and implemented to prevent exposure, where feasible.
    (ii) Hazard communication. Requirements as specified in Sec.  
721.72(a) through (d), (f), (g)(1), and (g)(5). For purposes of Sec.  
721.72(g)(1), this substance may cause: skin sensitization, respiratory 
sensitization, and specific target organ toxicity. Alternative hazard 
and warning statements that meet the criteria of the Globally 
Harmonized System and OSHA Hazard Communication Standard may be used.
    (iii) Industrial, commercial, and consumer activities. Requirements 
as specified in Sec.  721.80(o). It is a significant new use to 
manufacture, process, or use the substance in any manner that results 
inhalation exposure.
    (b) Specific requirements. The provisions of Subpart A of this part 
apply to this section except as modified by this paragraph (b).
    (1) Recordkeeping. Recordkeeping requirements as specified in Sec.  
721.125(a) through (i) are applicable to manufacturers, importers, and 
processors of this substance.
    (2) Limitation or revocation of certain notification requirements. 
The provisions of Sec.  721.185 apply to this section.


Sec.  721.12076  Sulfonium, tricarbocyclic-, alkylcarbomonocyclic-
polyfluoro-heteropolycyclic-alkyl sulfonate (1:1), polymer with 
alkylaryl and carbomonocyclic alkylalkanoate, di-Me 2,2'-(1,2-
diazenediyl)bis[2-alkylalkanoate]-initiated (generic).

    (a) Chemical substance and significant new uses subject to 
reporting. (1) The chemical substance identified generically as 
sulfonium, tricarbocyclic-, alkylcarbomonocyclic-polyfluoro-
heteropolycyclic-alkyl sulfonate (1:1), polymer with alkylaryl and 
carbomonocyclic alkylalkanoate, di-Me 2,2'-(1,2-diazenediyl)bis[2-
alkylalkanoate]-initiated (PMN P-23-172) is subject to reporting under 
this section for the significant new uses described in paragraph (a)(2) 
of this section. The requirements of this section do not apply to 
quantities of the substance after they have been completely reacted or 
adhered (during photolithographic processes) onto a semiconductor wafer 
surface or similar manufactured article used in the production of 
semiconductor technologies.
    (2) The significant new uses are:
    (i) Protection in the workplace. Requirements as specified in Sec.  
721.63(a)(1), (a)(2)(i) and (iii), (a)(3), and (c). When determining 
which persons are reasonably likely to be exposed as required for Sec.  
721.63(a)(1), engineering control measures (e.g., enclosure or 
confinement of the operation, general and local ventilation) or 
administrative control measures (e.g., workplace policies and 
procedures) shall be considered and implemented to prevent exposure, 
where feasible.
    (ii) Hazard communication. Requirements as specified in Sec.  
721.72(a) through (f), (g)(1), (g)(2)(i) through (iii) and (v), 
(g)(3)(i) and (ii), and (g)(5). For purposes of Sec.  721.72(e), the 
concentration is set at 1.0%. For purposes of Sec.  721.72(g)(1), this 
substance may cause: acute toxicity, skin irritation, serious eye 
damage, skin sensitization, genetic toxicity, reproductive toxicity, 
and specific target organ toxicity. Alternative hazard and warning 
statements that meet the criteria of the Globally Harmonized System and 
OSHA Hazard Communication Standard may be used.
    (iii) Industrial, commercial, and consumer activities. Requirements 
as specified in Sec.  721.80(f), (k), and (t). It is a significant new 
use to import the substance other than in solution, unless in sealed 
containers weighing 5 kilograms or less. It is a significant new use to 
modify the processing of the substance in any way that generates dust, 
mist, or aerosol in a non-enclosed process. It is a significant new use 
to manufacture the substance longer than 18 months.
    (b) Specific requirements. The provisions of Subpart A of this part 
apply to this section except as modified by this paragraph (b).
    (1) Recordkeeping. Recordkeeping requirements as specified in Sec.  
721.125(a) through (i) are applicable to manufacturers, importers, and 
processors of this substance.
    (2) Limitation or revocation of certain notification requirements. 
The provisions of Sec.  721.185 apply to this section.
* * * * *
[FR Doc. 2025-13363 Filed 7-16-25; 8:45 am]
BILLING CODE 6560-50-P