Mealey's (December 3, 2021, 10:53 AM EST) -- ST. LOUIS — The Eighth Circuit U.S. Court of Appeals on Nov. 30 refused to revisit its rulings affirming a lower court’s conclusion that a Missouri coal-fired power plant operator violated the Clean Air Act (CAA) by making major modifications to units at a facility without a permit and vacating an injunction against a second facility against which no CAA violations had been alleged. Both the plant operator and the federal government sought a rehearing....