Environmentalists fight EPA bid to undo ozone 'backsliding' ruling

Environmental groups are opposing EPA's bid to scrap elements of a complex appeals court ruling that vacated several pieces of the agency's rule for states' implementation of the 2008 federal ozone standard, pushing instead for a limited stay of the court's ruling with respect to the affected “anti-backsliding” protections. EPA petitioned the U.S. Court of Appeals for the District of Columbia Circuit April 23 for panel rehearing of the court's Feb. 16 ruling on the agency's 2015 rule that sets...