Pursuant to the Federal Clean Air Act (CAA or the Act), the Environmental Protection Agency (EPA) is proposing to approve the portions of a State Implementation Plan (SIP) revision submitted by the State of Texas that describes how CAA requirements for Nonattainment New Source Review (NNSR) and emission statements are met in the Dallas- Fort Worth (DFW), Houston-Galveston-Brazoria (HGB), and Bexar County ozone nonattainment areas for the 2015 ozone National Ambient Air Quality Standards (NAAQS).