Summary:
The Environmental Protection Agency (EPA) is supplementing a proposed approval published on March 6, 2023 ("March 2023 proposal"), for revisions to the Texas State Implementation Plan (SIP) that updates the Texas Prevention of Significant Deterioration (PSD) and Nonattainment New Source Review (NNSR) permitting programs to incorporate Federal New Source Review (NSR) regulations for Project Emissions Accounting (PEA). This proposal supplements the March 2023 proposal with respect to the EPA's evaluation of the Texas SIP submittal and the anti-backsliding requirements of the Clean Air Act (CAA) sections 110(l) and 193. The EPA is providing an opportunity for public comment on this supplemental proposal. The EPA is not reopening for comment the March 2023 proposal. Comments received on the March 2023 proposal and this supplemental proposal will be addressed in a final rule.