Definition of the source category.

The HCFC-22 production and HFC-23 destruction source category consists of HCFC-22 production processes and HFC-23 destruction processes. (a) An HCFC-22 production process produces HCFC-22 (chlorodifluoromethane, or CHClF 2 ) from chloroform (CHCl 3 ) and hydrogen fluoride (HF). (b) An HFC-23 destruction process is any process in which HFC-23 undergoes destruction. An HFC-23 destruction process may or may not be co-located with an HCFC-22 production process at the same facility.