(a) The requirements in this subchapter apply to affected sources at the Arcosa LWS LLC Lightweight Streetman plant, which is located at 14885 South Interstate Highway 45 East in Streetman, Texas in the Navarro County sulfur dioxide (SO2) nonattainment area. Affected sources will remain subject to this subchapter regardless of ownership, operational control, or other documentation changes. (b) The affected source is designated by source name and emission point number (EPN) used in the site's New Source Review (NSR) permit as issued on the specified date. The affected source is Kiln Scrubber Stack (EPN E3-1) in New Source Review Permit 5337 dated May 29, 2020. This designation must continue to be used as the EPN for the lightweight aggregate kiln or any control device for SO2 regardless of any changes made to the lightweight aggregate kiln or its control system.