Data / Federal rules / 2025-19881

Methylene Chloride; Regulation Under the Toxic Substances Control Act (TSCA); Compliance Date Extension

The Environmental Protection Agency published this final rule in the Federal Register on November 13, 2025. It took effect on December 15, 2025.

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What the agency says

The Environmental Protection Agency (EPA or Agency) is finalizing an extension to the compliance dates applicable to certain entities subject to the regulation of methylene chloride promulgated under the Toxic Substances Control Act (TSCA). Specifically, EPA is finalizing an 18-month extension of the Workplace Chemical Protection Program (WCPP) and associated recordkeeping compliance dates for industrial or commercial laboratories that are not owned or operated by Federal agencies or contractors acting on behalf of the Federal government. Under this final rule, all non-Federal laboratories will share the same compliance dates with Federal and Federally contracted laboratories. EPA is finalizing an extension of the compliance dates for associated laboratory activities detailed in this final rule to avoid disruption of important functions of non-Federal laboratories such as the use of environmental monitoring methods needed for cleanup sites and wastewater treatment, as well as activities associated with university laboratories or law enforcement laboratories.

Key facts

Document number: 2025-19881
Type: Final rule
Action: Final rule
Agency: Environmental Protection Agency
Published: November 13, 2025
Takes effect: December 15, 2025
Dates: This final rule is effective on December 15, 2025.
Docket: EPA-HQ-OPPT-2020-0465; FRL-8155.1-02-OCSPP
Regulation ID (RIN): 2070-AL28
Code of Federal Regulations: 40 CFR 751
Topics: Chemicals; Environmental protection; Hazardous substances
Pages: 7

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 November 2025

Read from the Federal Register API, last updated 2026-10-24. 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.