“Single industrial grouping” as used in the definition of “major source” means a compilation where all pollutant emitting activities at a source or group of sources.

Source. #6057-A, eff 6-30-95; renumbered by #8256 (from Env-A 101.249), (see Revision Note #1 at chapter heading); renumbered by #8304 (see Revision Note #2 at chapter heading); renumbered by #9839 (from Env-A 101.171), (see Revision Note #3 at chapter heading); ss by #13105, eff 9-25-20 (formerly Env-A 101.173) (see Revision Note #4 at chapter heading for Env-A 100)