EPA is approving revisions to the Cherokee County ozone maintenance area portion of the South Carolina Air Quality Implementation Plan or State Implementation Plan (SIP) submitted on June 27, 1998, through the South Carolina Department of Health and Environmental Control (SC DHEC). This SIP revision updates the emissions inventory and emissions budget established in the Cherokee County Ozone Maintenance Plan for conducting transportation conformity analyses in accordance with the requirements of the Clean Air Act (CAA).