EPA and Army Corps issue supplemental WOTUS rulemaking after Sackett

The EPA and Department of the Army issued a supplemental notice of proposed rulemaking to revise the Clean Water Act's definition of 'Waters of the United States' following the Supreme Court's 2023 Sackett decision. The rulemaking continues an established pattern of regulatory adjustment to judicial constraints, with the agencies seeking additional comment on specific aspects of the November 2025 proposal. This matters as it will determine federal jurisdiction over wetlands and waterways, affecting permitting and development across the U.S.