Approval and Promulgation of Implementation Plans; Texas; Revisions to the New Source Review (NSR) State Implementation Plan (SIP); Antibacksliding of Major NSR SIP Requirements for the One-Hour Ozone National Ambient Air Quality Standards (NAAQS); Major Nonattainment NSR (NNSR) SIP Requirements for the 1997 Eight-Hour Ozone NAAQS; and Major NSR Reform Program

EPA is approving revisions to the SIP for the State of Texas that relate to antibacksliding of Major NSR SIP Requirements for the one-hour ozone NAAQS; Major NNSR SIP requirements for the 1997 eight- hour ozone NAAQS; Major NSR Reform Program with Plantwide Applicable Limit (PAL) provisions; and non-PAL aspects of the Major NSR SIP requirements, because these changes comply with the Federal Clean Air Act (the Act or CAA) and EPA regulations and are consistent with EPA policies. Texas submitted revisions to these programs in two separate SIP submittals on March 11, 2011. On August 29, 2012, Texas submitted SIP revisions (adopted July 25, 2012) that it had previously proposed February 22, 2012, for parallel processing. On May 3, 2012, Texas provided a letter to EPA which included a demonstration showing how its submitted rules are at least as stringent as the Federal NSR Reform Program. EPA proposed approval of these revisions on June 20, 2012. Today, EPA is approving the two SIP revisions submitted March 11, 2011; the revisions submitted August 29, 2012; and the May 3, 2012, letter as part of the Texas NSR SIP. EPA is approving these provisions under section 110 and parts C and D of the Act.