The Environmental Protection Agency (EPA) is taking direct final action to approve changes to the South Carolina State Implementation Plan (SIP) to address requirements for the reporting of emissions of criteria air pollutants (CAPs) and their precursors. EPA is approving a SIP revision submitted on June 14, 2010, by the State of South Carolina, through the South Carolina Department of Health and Environmental Control (SC DHEC), and portions of subsequent SIP revisions submitted on August 8, 2014 and November 4, 2016, which further revise the regulations concerning the reporting of emissions. This action is being taken pursuant to the Clean Air Act (CAA or Act).