The court holds that the U.S. Environmental Protection Agency's (EPA's) regulations implementing Clean Air Act (CAA) amendments properly delegated to Native American nations authority to regulate air quality on all land within reservations, including fee land held by private landowners who are not t...

The court affirms a district court decision holding that hazardous waste regulatory charges imposed by New York on federal installations operated by the U.S. Department of Energy (DOE) in New York are reasonable service charges within the meaning of Resource Conservation and Recovery Act §6001(a), ...

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 (CAA) are lawful. The court first holds that nothing in the CAA unambiguously requires EPA to analyze the...

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 wintertime in Clark County, Nevada, which is a serious nonattainment area for carbon monoxide (CO), to contain a...

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 exempts from state review emissions violations resulting from the startup, shutdown, or malfunction (SSM) of the sourc...

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 plant, would constitute a single source of air emission for permitting purposes under the Clean Air Act (CAA). The plant...

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 regenerator, but the individuals do have standing to maintain a CAA citizen suit against the refinery for f...

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 performance standards (NSPS) for petroleum refineries. The regulations apply to affected facilities in p...

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 regulations were challenged by an environmental group and an industry association. The court first dismisses the...

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 manufacturing. The amended opinion removes the argument that the Clean Air Act (CAA) §112(d)(2)(A) requirement that E...