EPA, State Regulators Warn GNP Stay Will Delay Ozone NAAQS Attainment

EPA air officials and some state regulators are preparing for likely delays in attainment of federal ozone standards after the Supreme Court stayed the agency’s Good Neighbor Plan (GNP) interstate air rule, setting up tough decisions for regulators as litigation on the rule grinds forward in appellate courts. “The stay really poses a significant possibility that the downwind attainment schedules” for the 2015 ozone national ambient air quality standards (NAAQS) “will be disrupted,” EPA air chief Joe Goffman said at...