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Visibility protection for class I areas, §169A

National Parks Conservation Ass'n v. U.S. Environmental Protection Agency

The Ninth Circuit granted in part and denied in part petitions for review challenging EPA's federal implementation plan to reduce regional haze at two power plants in Montana. The owner and operator of the plants, as well as...

WildEarth Guardians v. United States Environmental Protection Agency

The Tenth Circuit denied petitions for review challenging EPA's approval of a regional cap-and-trade program regulating sulfur dioxide (SO2) emissions to address regional haze over the Colorado Plateau, a Class I area. Under the CAA's...

North Dakota v. United States Environmental Protection Agency

The Eighth Circuit vacated and remanded EPA's best available retrofit technology (BART) determination for a large power plant in North Dakota, but otherwise upheld EPA's partial disapproval of two SIPs submitted by North Dakota to meet...

American Corn Growers Ass'n v. EPA

The court holds that the best available retrofit technology (BART) provisions of the U.S. Environmental Protection Agency's (EPA's) regional haze rule violate the Clean Air Act (CAA), but that the rule's natural visibility goal and no...