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This action would withdraw the Federal implementation plan (FIP) provisions that require affected electricity generating units (EGUs) in Texas to participate in Phase 2 of the Cross-State Air Pollution Rule (CSAPR) trading programs for annual emissions of sulfur dioxide (SO2) and nitrogen oxides (NOX). Withdrawal of the FIP requirements is intended to address a decision of the U.S. Court of Appeals for the District of Columbia Circuit (D.C. Circuit) remanding the CSAPR Phase 2 SO2 budget for Texas to the EPA for reconsideration. This action would also determine that, following withdrawal of the FIP requirements, sources in Texas will not contribute significantly to nonattainment in, or interfere with maintenance by, any other state with regard to the 1997 national ambient air quality standard (NAAQS) for fine particulate matter (PM2.5), and that the EPA therefore will have no obligation to issue new FIP requirements for Texas sources to address transported PM2.5 pollution under Clean Air Act (CAA) section 110(a)(2)(D)(i)(I) with regard to that NAAQS.