One of the nation's largest coal companies is challenging the U.S. Environmental Protection Agency's final ruling that the agency's 2014 mercury and air toxics standards will stay in place even after a new consideration of costs.
The State Journal reports that Murray Energy filed a brief with the U.S. Circuit Court of Appeals for the District of Columbia Circuit on Monday, challenging the EPA's supplemental finding that was submitted earlier in the day.
The EPA submitted the supplemental finding nearly a year after the U.S. Supreme Court ruled that the regulation could stay in place as the EPA conducted a cost-benefit analysis. Still, the high court found the EPA failed to take costs into account when the agency first decided to regulate the toxic emissions from coal- and oil-fired plants.