Updated Definition of “Waters of the United States”
The comment period closed Oct 9, 2026.
The purpose of this supplemental notice of proposed rulemaking is for the U.S. Environmental Protection Agency (EPA) and the Department of the Army ("the agencies") to supplement and seek additional comment on certain aspects of an earlier proposal, published on November 20, 2025, to revise the regulations defining the scope of waters federally covered under the Clean Water Act in light of the U.S
Summary from the Federal Register.
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Full history
- Sep 9, 2026
Rule published
Updated Definition of “Waters of the United States”
Defense Department
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From the Federal Register. This record was last updated Oct 5, 2026. About our data
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