California's unique ability to set its own vehicle emissions standards under Section 209(b) of the Clean Air Act (CAA) is facing unprecedented legal and political challenges. At the center of the controversy is Congress's...more
Federal Rollbacks Prompt State Action - The Environmental Protection Agency (EPA) under the Trump Administration has announced plans to rescind and reconsider key portions of the 2024 PFAS (per- and polyfluoroalkyl...more
The United States Supreme Court issued a unanimous decision in Seven County Infrastructure Coalition v. Eagle County, Colorado, on May 19, 2025, clarifying that the scope of judicial review of federal agency environmental...more
EPA recently published a 2024 update to its Interim Guidance on the Destruction and Disposal of Perfluoroalkyl and Polyfluoroalkyl Substances (PFAS) and Materials Containing PFAS (Interim Guidance), as required by the...more
The EPA has designated two per- and polyfluoroalkyl substances (PFAS) – perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS), including their salts and structural isomers – as hazardous substances under the...more
In 2021, the U.S. Environmental Protection Agency (EPA) introduced the "PFAS Strategic Roadmap," which established a "whole agency" approach to addressing per- and polyfluoroalkyl substances (PFAS). As part of its strategy,...more