Data / Federal rules / 2024-12645

PFAS National Primary Drinking Water Regulation; Correction

The Environmental Protection Agency published this final rule in the Federal Register on June 11, 2024. It took effect on June 25, 2024.

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What the agency says

The U.S. Environmental Protection Agency (EPA) is correcting formatting and entry designations in a final rule that was published in the Federal Register on April 26, 2024. The rule finalized National Primary Drinking Water Regulations under the Safe Drinking Water Act for five individual per- and polyfluoroalkyl substances (PFAS): perfluorooctanoic acid (PFOA), perfluorooctane sulfonic acid (PFOS), perfluorohexane sulfonic acid (PFHxS), perfluorononanoic acid (PFNA), hexafluoropropylene oxide dimer acid (HFPO-DA, commonly known as GenX Chemicals). The rule finalized a NPDWR for two or more mixtures of PFNA, PFHXs, HFPO-DA and perfluorobutane sulfonic acid (PFBS). This document corrects formatting and entry designations in the final regulation.

Key facts

Document number: 2024-12645
Type: Final rule
Action: Final rule; correction
Agency: Environmental Protection Agency
Published: June 11, 2024
Takes effect: June 25, 2024
Dates: Effective on June 25, 2024.
Docket: EPA-HQ-OW-2022-0114; FRL 8543-04-OW
Regulation ID (RIN): 2040-AG18
Code of Federal Regulations: 40 CFR 141
Pages: 4

The document on federalregister.gov PDF

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Everything from the Environmental Protection Agency · Published in June 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.