On February 23, 2022, the Texas Commission on Environmental Quality (TCEQ) adopted the Redesignation Request and Maintenance Plan State Implementation Plan (SIP) Revision for the Freestone-Anderson and Titus 2010 Sulfur Dioxide (SO2) National Ambient Air Quality Standard (NAAQS) Nonattainment Areas. The SIP revision includes a request that the United States Environmental Protection Agency redesignate the Freestone-Anderson and Titus nonattainment areas to attainment for the 2010 SO2 NAAQS and provides 10-year maintenance plans for both areas consistent with federal Clean Air Act requirements. The SIP revision also addresses the comprehensive emissions inventory and nonattainment new source review certification statement SIP requirements provided under Part D of the FCAA.
For additional information, please visit the TCEQ Air Pollution from Sulfur Dioxide webpage.