Missouri Fights EPA Disapproval Of Good Neighbor ‘Supplemental’ Plan

Missouri and utility Ameren are fighting EPA’s proposed rejection of the state’s “supplemental” plan for interstate ozone pollution requirements, even as EPA’s disapproval of the original plan and imposition of a federal solution remain stayed by courts and the agency. EPA Aug. 6 proposed to disapprove Missouri’s supplemental state implementation plan (SIP) to meet the Clean Air Act’s “good neighbor” requirement with respect to the 2015 ozone national ambient air quality standard (NAAQS). The supplement modifies an earlier SIP that...