The EPA is approving a State Implementation Plan (SIP) revision submitted by the State of Texas establishing a Low Emission Diesel (LED) fuel program for distribution in 110 counties in the eastern and central parts of Texas. Texas developed this fuel requirement to reduce ozone as part of the State's strategy to achieve the National Ambient Air Quality Standard (NAAQS) in the Houston- Galveston Area (HGA) nonattainment area. We are approving Texas' fuel requirement into the SIP because we found that the fuel requirement is in accordance with the requirements of the Clean Air Act (the Act) as amended in 1990 and is necessary for the nonattainment area to achieve the ozone NAAQS.