The EPA is approving the State Implementation Plan (SIP) revision submitted by the State of South Carolina on November 19, 2003, for the purpose of establishing specific consultation procedures for the implementation of transportation conformity requirements. This SIP revision also incorporates the State's adoption of the Federal transportation conformity regulations verbatim. EPA is not taking action on portions of the transportation conformity regulations affected by Environmental Defense Fund v. EPA, 167 F.3d 641 (DC Cir. 1999), including sections 102(c)(1), 118(e)(1), 120(a)(2), 121(a)(1), and 124(b). The transportation conformity rule assures that projected emissions from transportation plans, improvement programs and projects in air quality nonattainment or maintenance areas stay within the motor vehicle emissions ceiling contained in the SIP. The transportation conformity SIP revision enables the State to implement and enforce the Federal transportation conformity requirement at the state level. This action streamlines the conformity process to allow direct consultation among agencies at the local level. This final approval action is limited to requirements for transportation conformity.