Approval and Promulgation of Air Quality Implementation Plans; Texas; Reasonable Further Progress Plan, Motor Vehicle Emissions Budgets, and 2002 Base Year Emissions Inventory; Houston-Galveston-Brazoria 1997 8-Hour Ozone Nonattainment Area

The Environmental Protection Agency (EPA) is approving a revision to the Texas State Implementation Plan (SIP) to meet the Reasonable Further Progress (RFP) and Emissions Inventory requirements of the Clean Air Act (CAA) for the Houston-Galveston-Brazoria (HGB) moderate 1997 8-hour ozone nonattainment area. EPA is also approving the RFP motor vehicle emissions budgets (MVEBs) associated with the revision. EPA is approving the SIP revision because it satisfies the RFP and Emissions Inventory requirements for 1997 8-hour ozone nonattainment areas classified as moderate and demonstrates the required progress in reducing ozone precursors. EPA is approving the revision pursuant to section 110 and part D of the CAA and EPA's regulations.