Skip to main content
Comment ClosedEPA· Environmental Protection AgencyProposed RuleEPA-HQ-OW-2025-0322

Updated Definition of ‘‘Waters of the United States’’

Introduced November 20, 2025Comment period ends January 6, 2026View on regulations.gov ↗

What This Means

The Environmental Protection Agency updates the federal definition of waters subject to Clean Water Act regulation. This rule determines which aquatic resources receive federal environmental protection.

Plain language summary generated by AI · Civitics

Community Position

Community Comments

Other Open EPA Proposals

Comment Period

The public comment period for this proposal has closed.

Details

TypeFederal Regulation
AgencyEPA · Environmental Protection Agency
DocketEPA-HQ-OW-2025-0322
Regulations.gov IDEPA-HQ-OW-2025-0322-0001
IntroducedNovember 20, 2025
Comment DeadlineJanuary 6, 2026