The court remands two aspects of a final U.S. Environmental Protection Agency (EPA) rule that requires many nitrogen oxide-emitting facilities in several midwestern and southeastern states to…

The court holds that the U.S. Environmental Protection Agency (EPA) has the power under the Clean Air Act (CAA) to adopt de minimis exemptions for sources of pollution from particulate matter…

The court reverses and remands the convictions of two individuals charged with improperly removing asbestos-containing materials from a hotel and casino in Las Vegas, Nevada. The court first holds…

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…