Appellate Judges Query EPA's Approach To Ozone NAAQS Designations

Appellate judges at Oct. 21 oral arguments raised broad questions over EPA's policies for designating areas as either in attainment or nonattainment with the agency's 2008 ozone ambient air standard, and their eventual ruling could set a precedent on the validity of EPA's approaches, including the scope of which areas to label nonattainment. The pending case in the U.S. Court of Appeals for the District of Columbia Circuit, Mississippi Commission on Environmental Quality, et al., v. EPA , consolidates a...