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EPARulemakingEPA-HQ-OW-2025-0322

Updated Definition of Waters of the United States

RIN
2040-AG44
Last modified
Jun 30, 2026
Comment window
closed 204d ago
Natural Resources Defense Council (NRDC) filings
4

Activity

Natural Resources Defense Council (NRDC) filed 4 comments on this docket between Nov 24, 2025 and May 28, 2026. 271 other organizations filed here. The comment window closed 204d ago.

What Natural Resources Defense Council (NRDC) filed (4)

Jan 8, 2026· Comment submitted by Natural Resources Defense Council (NRDC)· EPA-HQ-OW-2025-0322-0739

The Natural Resources Defense Council submits the attached letter (and accompanying attachments) as a comment on the proposed rule.

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Jan 6, 2026· Mass Comment Campaign sponsored by Natural Resources Defense Council (NRDC)· EPA-HQ-OW-2025-0322-0536

Dear EPA Administrator Lee Zeldin, Please accept these 23,715 public comments, including 3,406 personal messages, from members and activists of the Natural Resources Defense Council (NRDC) in reference to Docket # EPA-HQ-OW-2025-0322. Most individuals signed onto the following text: === Dear Administrator Zeldin, I am deeply concerned about your agency's proposed rule that eliminates Clean Water Act protections for many U.S. wetlands and streams. America's waterways are so interconnected that even weakening federal protections for wetlands anywhere will have a deep impact on clean water across the country. The proposal would increase flood risks, harm wildlife habitat, and threaten drinking water sources for millions of Americans. I stand with thousands of people across the nation who are united in opposition to any attempts to gut clean water protections. Please keep our critical waters protected and do not finalize this new rule. Thank you. === Thank you for considering these comments concerning revisions to regulations that would dangerously reduce the scope of waters federally covered under the Clean Water Act. Sincerely, Samantha Wines NRDC National Digital Advocacy Campaign Manager

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Nov 24, 2025· Comment submitted by A House Unbuilt, Natural Resources Defense Council et al.· EPA-HQ-OW-2025-0322-0138

Please find attached a request that the Environmental Protection Agency (EPA) and Army Corps of Engineers (Corps) extend the comment period for the proposed rule published November 20 in the Federal Register titled "Updated Definition of 'Waters of the United States,'" 90 Fed. Reg. 52,498 (Nov. 20, 2025).

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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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Co-filers (271)

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