(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.

Source Note: The provisions of this §117.400 adopted to be effective June 14, 2007, 32 TexReg 3206; amended to be effective June 25, 2015, 40 TexReg 3965