A recently proposed rule by the U.S. Environmental Protection Agency (EPA) seeks to expand the powers of states and tribes in approving or denying projects that require Clean Water Act (CWA) authorization. On June 9, 2022, EPA published for public comment its proposed Clean Water Act Section 401 Water Quality Certification Improvement Rule, which would significantly alter a Trump-era rule regarding the grounds on which state and tribal certifying agencies may impose conditions on, or outright block, projects that receive federal authorization. (more…)