Approval and Promulgation of Implementation Plans and Designation of Areas for Air Quality Planning Purposes; Texas; Beaumont/Port Arthur Ozone Nonattainment Area: Redesignation to Attainment for the 1997 8-Hour Ozone Standard and Determination of Attainment for the 1-Hour Ozone Standard; Clarification of EPA's Approval of the El Paso Section 110(a)(1) Maintenance Plan for the 1997 8-Hour Ozone Standard

Résumé

EPA is taking final action to approve a request from the State of Texas to redesignate the Beaumont/Port Arthur (BPA) Texas ozone nonattainment area to attainment of the 1997 8-hour ozone National Ambient Air Quality Standard (NAAQS). EPA is making a final determination that the BPA nonattainment area has attained the 1997 8- hour ozone NAAQS, based on complete, quality-assured, and certified ambient air quality monitoring data for 2006-2008. Preliminary data available for 2009 and 2010 show that the area continues to attain the 1997 8-hour ozone NAAQS. In finalizing its approval of the redesignation request, EPA also approves, as a revision to the BPA State Implementation Plan (SIP), a 1997 8-hour ozone maintenance plan that includes a 2021 Motor Vehicle Emissions Budget (MVEB). EPA is also approving the BPA area's 2002 base year emissions inventory as part of the BPA SIP. EPA also is approving as part of the BPA SIP, the Texas Clean-Fuel Vehicle (CFV) Program Equivalency Demonstration. EPA finds that with final approval of these revisions, the area has a fully approved SIP that meets all of the 1997 8-hour ozone requirements and 1-hour ozone anti-backsliding requirements under se