In accordance with the Clean Air Act (CAA), the Environmental Protection Agency (EPA) is redesignating the Lake County sulfur dioxide (SO<INF>2</INF>) nonattainment area from nonattainment to attainment. EPA is also approving Ohio's maintenance plan, which Ohio submitted on April 9, 2018. EPA has approved Ohio's State Implementation Plan (SIP) for Lake County, and the air quality in the area is meeting the SO<INF>2</INF> standard.