Data / Federal rules / 2024-08547

Designation of Perfluorooctanoic Acid (PFOA) and Perfluorooctanesulfonic Acid (PFOS) as CERCLA Hazardous Substances

The Environmental Protection Agency published this final rule in the Federal Register on May 8, 2024. It took effect on July 8, 2024.

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What the agency says

Pursuant to the Comprehensive Environmental Response, Compensation, and Liability Act ("CERCLA" or "Superfund"), the Environmental Protection Agency (EPA) is designating two per- and polyfluoroalkyl substances (PFAS)--perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS), including their salts and structural isomers--as hazardous substances. The Agency reached this decision after evaluating the available scientific and technical information about PFOA and PFOS and determining that they may present a substantial danger to the public health or welfare or the environment when released. The Agency also determined that designation is warranted based on a totality of the circumstances analysis, including an analysis of the advantages and disadvantages of designation.

Key facts

Document number: 2024-08547
Type: Final rule
Action: Final rule
Agency: Environmental Protection Agency
Published: May 8, 2024
Takes effect: July 8, 2024
Dates: Effective July 8, 2024.
Docket: EPA-HQ-OLEM-2019-0341; FRL-7204-03-OLEM
Regulation ID (RIN): 2050-AH09
Code of Federal Regulations: 40 CFR 302
Topics: Air pollution control; Chemicals; Environmental protection; Hazardous substances; Hazardous waste; Intergovernmental relations; Natural resources; Reporting and recordkeeping requirements; Superfund; Water pollution control; Water supply
Pages: 69

The document on federalregister.gov PDF

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Everything from the Environmental Protection Agency · Rules on air pollution control · Rules on chemicals · Rules on environmental protection · Published in May 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.