Approval and Promulgation of Air Quality Implementation Plans; Texas; Reasonable Further Progress Plan, Enhanced Monitoring, Clean Fuel Fleets and Failure-to-Attain Contingency Measures for the Dallas/Fort Worth 1997 8-Hour Ozone Nonattainment Area; and Transportation Conformity

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 January 17, 2012, which contain a reasonable further progress (RFP) plan and associated contingency measures and motor vehicle emission budgets; a revised 2002 base year emissions inventory for the RFP; enhanced ambient monitoring; and the clean-fuel fleet programs for the Dallas/Fort Worth (DFW) Serious nonattainment area under the 1997 8-hour ozone standard. The EPA is also approving revisions to the DFW Moderate area attainment demonstration SIP submitted by the TCEQ on April 6, 2010, which address the failure-to-attain contingency measures. The EPA is also approving revisions submitted by the TCEQ on July 25, 2007, March 25, 2010 and April 13, 2012, which address the Texas transportation conformity rules and the Texas Diesel Emissions Reduction Incentive Program for On-Road and Non-Road Vehicles. The EPA is approving these SIP revisions in accordance with the requirements of the Clean Air Act (CAA or Act).