EPA Determines Detroit Area Failed to Meet 2015 Ozone NAAQS, Reclassifies to Moderate Nonattainment

Summary

The Environmental Protection Agency (EPA) has determined that the Detroit area failed to meet the 2015 ozone National Ambient Air Quality Standards (NAAQS) by the applicable attainment date, resulting in a reclassification to 'Moderate' nonattainment for the 2015 ozone NAAQS on March 1, 2023. The Michigan Department of Environment, Great Lakes, and Energy (EGLE) must now submit State Implementation Plan (SIP) revisions and implement controls to satisfy statutory and regulatory requirements.