2. The abbrevations used in this Regulation mean the following:CGA: Canadian Gas Association;
ARI: Air Conditioning & Refrigeration Institute;
ASHRAE: American Society of Heating, Refrigerating and Air-Conditioning Engineers;
ASTM: American Society for Testing and Materials;
CAN: Standards Council of Canada;
CSA: Canadian Standards Association (ACNOR);
HI: Hydronics Institute;
CGSB: Canadian General Standards Board;
SMACNA: Sheet Metal and Air Conditioning Contractors National Association Inc.