Approval and Promulgation of Implementation Plans and Designation of Areas for Air Quality Planning; Louisiana; Baton Rouge Area: Redesignation to Attainment for the 1997 8-Hour Ozone Standard

EPA is taking final action to approve the State of Louisiana's request to redesignate the Baton Rouge, Louisiana moderate 1997 8-hour ozone nonattainment area to attainment of the 1997 8-hour ozone standard. As a part of this action, EPA is also approving, as a revision to the Louisiana State Implementation Plan (SIP), the state's 1997 8-hour ozone maintenance plan with a 2022 Motor Vehicle Emissions Budget (MVEB) for the Baton Rouge Nonattainment Area (BRNA or BR), revisions to the Louisiana SIP that meet the Reasonably Available Control Technology (RACT) requirements (for nitrogen oxides (NO<INF>X</INF>) and volatile organic compounds (VOCs)) for the 1-hour and 1997 8-hour ozone standard requirements, and a state rule establishing a maintenance plan contingency measure. EPA finds that with this final approval the area has a fully approved SIP that meets all of its applicable 1997 8-hour ozone requirements and 1-hour anti- backsliding requirements under section 110 and Part D of the Federal Clean Air Act (CAA or Act) for purposes of redesignation.