Approval and Promulgation of Implementation Plans; Texas; Revisions for Permitting of Particulate Matter With Diameters Less Than or Equal to 2.5 Micrometers (PM2.5)

The Environmental Protection Agency (EPA) is approving revisions to the Texas State Implementation Plan (SIP) submitted by the Texas Commission on Environmental Quality (TCEQ) on May 19, 2011. The May 19, 2011, SIP submission adopts revisions to the Texas General Air Quality Definitions and Permits by Rule (PBR) program consistent with certain federal rules implementing the 1997 and 2006 PM<INF>2.5</INF> National Ambient Air Quality Standard (NAAQS). EPA finds that the Texas Prevention of Significant Deterioration (PSD) New Source Review (NSR) SIP meets all EPA PM<INF>2.5</INF> PSD SIP rules. These rules include permitting components such as the PM<INF>2.5</INF> precursors of sulfur dioxide and nitrogen oxides, condensables, significant emissions rates (SER), and increment. EPA is approving these actions under section 110 and part C of the Clean Air Act (CAA or the Act).