Missouri sues EPA over St Louis ozone nonattainment

January 30, 2025
Missouri is suing EPA over its decision finding that the St. Louis area failed to attain federal ozone standards by the applicable Clean Air Act deadline and reclassifying the Missouri portion of the area from “moderate” to “serious” nonattainment, a change that will require tougher air pollution control measures from the state. The state challenges EPA’s reclassification rule in a suit filed Jan. 24 in the U.S. Court of Appeals for the 8th Circuit. EPA reclassified the area in a...


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