(a) The provisions of this division apply to the following units located at any major stationary source of nitrogen oxides (NOX ) located in Collin, Dallas, Denton, Ellis, Johnson, Kaufman, Parker, Rockwall, or Tarrant County:(1) industrial, commercial, or institutional boilers and process heaters;(2) stationary gas turbines;(3) stationary internal combustion engines;(4) duct burners used in turbine exhaust ducts;(5) lime kilns;(6) metallurgical heat treating furnaces and reheat furnaces;(7) incinerators;(8) glass, fiberglass, and mineral wool melting furnaces; (9) fiberglass and mineral wool curing ovens;(10) natural gas-fired ovens and heaters;(11) natural gas-fired dryers used in organic solvent, printing ink, clay, brick, ceramic tile, calcining, and vitrifying processes;(12) brick and ceramic kilns; and(13) lead smelting reverberatory and blast (cupola) furnaces.(b) The provisions of this division apply to the following units located at any major stationary source of NOX located in Wise County:(1) industrial, commercial, or institutional process heaters;(2) stationary gas turbines; and(3) stationary internal combustion engines.