(a) The requirements in this division apply to affected sources at the Chevron Phillips Chemical Borger Plant, which is located in Borger, Texas at latitude 35.696666 and longitude -101.359722 in the Hutchinson County sulfur dioxide nonattainment area. Affected sources will remain subject to this division regardless of ownership, operational control, or other documentation changes.(b) Affected sources are designated by the 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 sources are as follows:(1) Sulfolene Handling Area (EPN F-M2A) in NSR Permit 21918 dated February 5, 2019;(2) North Flare (EPN FL-1) in NSR Permit 21918 dated February 5, 2019; and(3) South Flare, (EPN FL-2) in NSR Permit 21918 dated February 5, 2019.