A district court dismissed a challenge to FWS rules delaying the effective date of a January 2021 rule that designated portions of Washington, Oregon, and California as critical habitat for the northern spotted owl. A trade group and counties throughout the Pacific Northwest sought to vacate the "de...

A district court vacated a series of regulations enacted in 2019 that modified how FWS and NMFS implement the ESA. Environmental groups, states, and cities argued the regulations violated the ESA, the APA, and NEPA. FWS and NMFS moved to remand without vacatur, arguing vacatur would cause confusion ...

The U.S. Supreme Court held, 6-3, that President Barack Obama's EPA had exceeded its statutory authority under §111(d) of the CAA when it promulgated the Clean Power Plan to address carbon dioxide pollution from existing power plants. States and coal companies had petitioned for review of the plan,...