On April 24, the U.S. Court of Appeals for the District of Columbia Circuit dismissed a case involving Environmental Protection Agency (EPA) boiler MACT rules. The EPA recently revised the rule on hazardous air pollution standards for commercial, industrial, and institutional boilers. On April 19, the petitioner, the Wisconsin Electric Power Co., requested the case be dismissed finding that the revised rule addressed the concerns outlined in the case. More than 25 companies filed suits against the EPA over the original rule in early April.