The court amends an opinion that affirmed in part and remanded in part a U.S. Environmental Protection Agency's (EPA's) hazardous air pollutant (HAP) emission regulations for cement…

The court affirms in part and reverses in part the U.S. Environmental Protection Agency's (EPA's) hazardous air pollutant (HAP) emission regulations for Portland cement manufacturing.…

The court holds that the U.S. Environmental Protection Agency (EPA) erroneously classified two stationary gas turbines in an electrical power complex as subject to regulation under the new source…

The court holds that individuals lack standing to bring a Clean Air Act (CAA) citizen suit against a petroleum refinery for failing to report certain CAA emissions violations from its catalyst…

The court dismisses a power plants's motion to challenge the U.S. Environmental Protection Agency's (EPA's) determination that a proposed new plant, when combined with an existing…

The court affirms the U.S. Environmental Protection Agency's (EPA's) disapproval of a revision to the Michigan Clean Air Act (CAA) state implementation plan (SIP) that automatically…

The court upholds a district court dismissal for lack of subject matter jurisdiction of recreational groups' claims that the U.S. Forest Service violated the U.S. Constitution and the…

The court holds that a U.S. Environmental Protection Agency (EPA) rule establishing a bifurcated schedule for hazardous waste combustors to comply with strict new emission standards is arbitrary…

The court upholds the U.S. Environmental Protection Agency's (EPA's) approval of the Nevada Clean Air Act (CAA) state implementation plan (SIP) revision that requires gasoline sold in…

The court holds that U.S. Environmental Protection Agency (EPA) regulations limiting the content of volatile organic compounds (VOCs) in architectural coatings and paints under the Clean Air Act (…