Data / Federal rules / 2024-22168

Significant New Use Rules on Certain Chemical Substances (21-3.F)

The Environmental Protection Agency published this proposed rule in the Federal Register on September 27, 2024. Comments closed on October 28, 2024.

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What the agency says

EPA is proposing significant new use rules (SNURs) under the Toxic Substances Control Act (TSCA) for chemical substances that were the subject of premanufacture notices (PMNs). The chemical substances received "not likely to present an unreasonable risk" determinations pursuant to TSCA. The SNURs 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 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.

Key facts

Document number: 2024-22168
Type: Proposed rule
Action: Proposed rule
Agency: Environmental Protection Agency
Published: September 27, 2024
Comments due: October 28, 2024
Dates: Comments must be received on or before October 28, 2024.
Docket: EPA-HQ-OPPT-2021-0221; FRL-12141-01-OCSPP
Regulation ID (RIN): 2070-AB27
Code of Federal Regulations: 40 CFR 721
Topics: Chemicals; Environmental protection; Hazardous substances; Reporting and recordkeeping requirements
Pages: 18

The document on federalregister.gov PDF

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Everything from the Environmental Protection Agency · Rules on chemicals · Rules on environmental protection · Rules on hazardous substances · Published in September 2024

Read from the Federal Register API, last updated 2026-10-23. The document on federalregister.gov is the official record; dates and dockets can change through later corrections. Free to reuse with credit to SpecStream under CC BY 4.0.