Proposed Rule2026-10161

Significant New Use Rules on Certain Chemical Substances (26-2); Extension of Comment Period

Primary source

Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.

Published
May 21, 2026
Effective
April 24, 2026

Issuing agencies

Environmental Protection Agency

Abstract

EPA issued significant new use rules (SNURs) under the Toxic Substances Control Act (TSCA) on April 24, 2026, for chemical substances subject to an Order issued 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 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. This document extends the comment period, which was scheduled to end on May 26, 2026, for 45 days.

Full Text

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<title>Federal Register, Volume 91 Issue 98 (Thursday, May 21, 2026)</title>
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[Federal Register Volume 91, Number 98 (Thursday, May 21, 2026)]
[Proposed Rules]
[Pages 29926-29927]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2026-10161]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 721

[EPA-HQ-OPPT-2025-2932; FRL-13085-03-OCSPP]
RIN 2070-AB27


Significant New Use Rules on Certain Chemical Substances (26-2); 
Extension of Comment Period

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule; extension of comment period.

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SUMMARY: EPA issued significant new use rules (SNURs) under the Toxic 
Substances Control Act (TSCA) on April 24, 2026, for chemical 
substances subject to an Order issued 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

[[Page 29927]]

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 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. This document extends the 
comment period, which was scheduled to end on May 26, 2026, for 45 
days.

DATES: The comment period for the document published on April 24, 2026 
at 91 FR 22075 (FRL-13085-01-OCSPP) is extended. Comments must be 
received on or before July 10, 2026.

ADDRESSES: Submit your comments, identified by ID number EPA-HQ-OPPT-
2025-2932, online at <a href="https://www.regulations.gov">https://www.regulations.gov</a>. Follow the online 
instructions for submitting comments. Do not submit electronically any 
information you consider to be Confidential Business Information (CBI) 
or other information whose disclosure is restricted by statute. 
Additional instructions on commenting and visiting the docket, along 
with more information about dockets generally, is available at <a href="https://www.epa.gov/dockets">https://www.epa.gov/dockets</a>.

FOR FURTHER INFORMATION CONTACT: 
    For technical information: James Yan, New Chemicals Division 
(7405M), Office of Pollution Prevention and Toxics, Environmental 
Protection Agency, 1200 Pennsylvania Ave. NW, Washington, DC 20460-
0001; telephone number: (202) 564-2138; email address: 
<a href="/cdn-cgi/l/email-protection#4a332b2464202b272f390a2f3a2b642d253c"><span class="__cf_email__" data-cfemail="ec958d82c2868d81899fac899c8dc28b839a">[email&#160;protected]</span></a>.
    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: 
<a href="/cdn-cgi/l/email-protection#7c0b050f13121b520b151010151d113c190c1d521b130a"><span class="__cf_email__" data-cfemail="86f1fff5e9e8e1a8f1efeaeaefe7ebc6e3f6e7a8e1e9f0">[email&#160;protected]</span></a>.
    For general information on TSCA: The TSCA Assistance Information 
Service Hotline, Goodwill Vision Enterprises, 422 South Clinton Ave., 
Rochester, NY 14620; telephone number: (800) 471-7127 or (202) 554-
1404; email address: <a href="/cdn-cgi/l/email-protection#71252232305c391e051d181f14311401105f161e07"><span class="__cf_email__" data-cfemail="aafef9e9eb87e2c5dec6c3c4cfeacfdacb84cdc5dc">[email&#160;protected]</span></a>.

SUPPLEMENTARY INFORMATION: To give stakeholders additional time to 
review materials and prepare comments, EPA is hereby extending the 
comment period established in the Federal Register document of April 
24, 2026 at 91 FR 22075 (FRL-13085-01-OCSPP) for 45 days, from May 26, 
2026 to July 10, 2026. More information on the action can be found in 
the Federal Register of April 24, 2026.
    To submit comments or access the docket, please follow the detailed 
instructions provided under ADDRESSES. If you have questions, consult 
the technical person listed under FOR FURTHER INFORMATION CONTACT.

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

    Dated: May 15, 2026.
Mary Elissa Reaves,
Director, Office of Pollution Prevention and Toxics.
[FR Doc. 2026-10161 Filed 5-20-26; 8:45 am]
BILLING CODE 6560-50-P


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Indexed from Federal Register on May 21, 2026.

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