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EPARulemakingEPA-HQ-OW-2025-0322

Updated Definition of Waters of the United States

RIN
2040-AG44
Last modified
Oct 23, 2026
Comment window
closed 27d ago
National Mining Association filings
2

Activity

National Mining Association filed 2 comments on this docket between Jan 8, 2026 and Oct 15, 2026. 370 other organizations filed here. The comment window closed 27d ago.

What National Mining Association filed (2)

Oct 15, 2026· Comment submitted by National Mining Association (NMA)· EPA-HQ-OW-2025-0322-15939

Attached please find comments from the National Mining Association. Please contact Louis Baer at (202) 463-2605 or lbaer@nma.org if you have any questions about the comments.

Jan 8, 2026· Comment submitted by National Mining Association (NMA)· EPA-HQ-OW-2025-0322-0794

Attached please find comments from the National Mining Association on the Proposed Update to the Definition of Waters of the U.S. If you have questions regarding these comments, please contact Louis Baer at (202) 463-2605 or lbaer@nma.org.

Abstract

The U.S. Environmental Protection Agency and the U.S. Department of the Army are undertaking a rulemaking to revise the regulations defining the scope of waters federally covered under the Clean Water Act in light of the Supreme Court’s decision in Sackett v. Environmental Protection Agency, 598 U.S. 651 (2023). With this proposed rule, the agencies intend to provide greater regulatory certainty and increase Clean Water Act program predictability and consistency by clarifying the definition of “waters of the United States.” Related Dockets: EPA-HQ-OW-2025-0093; EPA-HQ-OW-2021-0602; EPA-HQ-OW-2023-0346

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