Determinations Concerning Need for Error Correction, Partial Approval and Partial Disapproval, and Federal Implementation Plan Regarding Texas's Prevention of Significant Deterioration Program

EPA is finalizing a correction to its previous full approval of Texas's Clean Air Act (CAA) Prevention of Significant Deterioration (PSD) program to be a partial approval and partial disapproval and is also promulgating a Federal Implementation Plan (FIP) for Texas. These actions are based on EPA's determination that at the time EPA approved Texas's PSD program, the program was flawed because the state did not address how the program would apply to all pollutants that would become newly subject to regulation in the future, including non-National Ambient Air Quality Standard (NAAQS) pollutants, among them greenhouse gases (GHGs). The partial disapproval requires EPA to promulgate a FIP and EPA is doing so to assure that GHG-emitting sources in Texas are able to proceed with plans to construct or expand.