Approval and Promulgation of Implementation Plans- Alabama: Approval of Revisions to the Alabama State Implementation Plan: Transportation Conformity Interagency Memorandum of Agreement

EPA is approving a revision to the Alabama State Implementation Plan (SIP) that contains the transportation conformity rule pursuant to sections 110(k) and 176 of the Clean Air Act as amended in 1990 (Act). The transportation conformity rule assures that projected emissions from transportation plans 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 requirements at the State level per regulations on Conformity to State or Federal Implementation Plans of Transportation Plans, Programs, and Projects Developed, Funded or Approved Under Title 23 U.S.C. of the Federal Transit Laws. This EPA approval action streamlines the conformity process and allows direct consultation among agencies at the local level. This final approval action is limited to certain regulations on Transportation Conformity. Rationale for approving this SIP revision is provided in the Supplementary Information Section of this action.