GOP States Sue EPA To Block Tougher Power Plant Mercury Air Rule

A coalition of 23 mainly GOP-led states is suing EPA to block its just-revised mercury and air toxics standards (MATS) rule that tightens emissions limits for coal and oil-fired power plants, as litigation ramps up against the agency’s broader power sector regulations, and GOP lawmakers pledge legislation to stop MATS and other rules. In their suit filed May 8 in the U.S. Court of Appeals for the District of Columbia Circuit, states led by North Dakota and West Virginia asked...