The Environmental Protection Agency (EPA) is making a determination that the Rusk and Panola Counties, Texas nonattainment area (Rusk-Panola area) \1\ failed to attain the 2010 one-hour primary sulfur dioxide (SO<INF>2</INF>) national ambient air quality standard (NAAQS) by the Clean Air Act (CAA or the Act) applicable attainment date of January 12, 2022. This determination is based upon consideration of and review of air quality information for the Rusk- Panola area leading up to the area's attainment date of January 12, 2022. The EPA proposed this finding of failure to attain on August 2, 2024, as part of a larger action that included proposed action on the attainment plan. EPA will be taking final action on our proposed limited approval and limited disapproval of Texas' attainment plan for the Rusk-Panola area in a separate action. ---------------------------------------------------------------------------