The Environmental Protection Agency (EPA) is approving Ohio's revisions to its State Implementation Plan (SIP) for sulfur dioxide (SO<INF>2</INF>) under the Clean Air Act (CAA). These revisions update facility information statewide and add new emission limits for selected sources in Lake and Jefferson Counties. EPA proposed to approve Ohio's SIP revision request on August 16, 2018. The revised regulations do not impose additional emission restrictions except for certain site- specific provisions which have been included in response to Ohio's nonattainment area designations of August 5, 2013. EPA received no adverse comments and is finalizing the approval.