United States: Environmental Law

California's housing and environmental regulations face new legal challenges as state agencies clash with local governments over compliance requirements. From escalating penalties against Huntington Beach to lawsuits over transit-oriented development rules, these disputes highlight the ongoing tension between state mandates and municipal authority in shaping land use policy.

Minnesota's Pollution Control Agency has published information on approximately 23,500 products containing intentionally added PFAS, representing about 16% of reports received as of October 2026. The agency has launched a new web page to help the public access this data, including information provided under waivers from the PFAS Reporting Information System for Manufacturers (PRISM).

On September 25, 2026, EPA published a final rule that codifies its existing interpretations regarding when and whether “applicable requirements” established in other Clean Air Act (CAA) programs may be reviewed, modified, and/or implemented through the Title V operating permit program. 91 Fed. Reg. 61026 (Sept. 25, 2026). In particular, the final rule clarifies (1) the limited situations in which requirements under the New Source Review (NSR) preconstruction permitting program would be reviewed using the EPA’s Title V oversight authorities, and (2) the EPA’s “well-established” position that the CAA’s General Duty Clause is not an “applicable requirement” implemented through the Title V program.