Significant New Use Rules on Certain Chemical Substances (26-4)

Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register July 30, 2026. Document 2026-15352. Updated Nov. 7, 2026.

What it does

EPA is proposing 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. Once finalized, the SNURs would require persons who intend to manufacture (defined by statute to include import) or process any of these chemical substances for an activity that is proposed as a significant new use by this rulemaking to notify EPA at least 90 days before commencing that activity. 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.

The Environmental Protection Agency's summary, as published in the Federal Register.

What it would change

1 part of Title 40 of the Code of Federal Regulations:

40 CFR 721

Before this

22 earlier Federal Register documents under regulation identifier 2070-AB27 since Jan. 1, 2025.

Since then:

What happens next and when

Comments must be received on or before August 31, 2026.

The agency's dates, word for word.

Check it yourself

The record as published

Document number	2026-15352
Action	Proposed rule.
Agencies	Environmental Protection Agency
Published	July 30, 2026
Comments close	Aug. 31, 2026
Regulation identifier (RIN)	2070-AB27
Docket	EPA-HQ-OPPT-2026-2707

Source: the Federal Register (public domain). The document in the Federal Register