Pursuant to the Federal Clean Air Act (CAA or the Act), the Environmental Protection Agency (EPA) is approving revisions to the Texas State Implementation Plan (SIP), concerning volatile organic compounds (VOC) and nitrogen oxides (NO<INF>X</INF>) Reasonably Available Control Technology (RACT) requirements for the Dallas-Fort Worth (DFW), 2008 8-hour ozone National Ambient Air Quality Standards (NAAQS) Serious nonattainment area (NAA). The revisions were submitted by the State of Texas on May 12, 2020, and May 13, 2020. The EPA is approving revisions to 30 Texas Administrative Code (TAC) Chapters 115 and 117 to implement the major source RACT requirements for VOC and NO<INF>X</INF> as addressed in the RACT analysis and negative declarations included in the Serious area Attainment Demonstration (AD) SIP revision.