The Environmental Protection Agency (EPA) is taking direct final action to approve changes to the Tennessee state implementation plan (SIP) submitted by the State of Tennessee, through the Tennessee Department of Environment and Conservation (TDEC) on behalf of the Knox County Department of Air Quality Management (County Department), on March 14, 2014, and May 14, 2015, that require certain sources in Knox County, Tennessee, to report actual emissions of volatile organic compounds (VOC) and oxides of nitrogen (NO<INF>X</INF>) to the County Department annually. These changes amend the Knox County Air Quality Management Regulations in the Knox County portion of the Tennessee SIP to reflect the State of Tennessee's SIP-approved emissions statement requirements for Knox County. This action is being taken pursuant to the Clean Air Act (CAA or Act) and its implementing regulations.