Canada
CSA – Canadian Standards Association
CIPH – Canadian Institute of Plumbing and Heating
NRC-IRC – Institute for Research in Construction
United States
ANSI – American National Standards Institute
ASHRAE – American Society of Heating, Refrigerating, and Air-Conditioning Engineers, Ltd.
ASTM – American Society for Testing and Materials
HUD – US Department of Housing and Urban Development
IAPMO – International Association of Plumbing & Mechanical Officials
ICC – International Code Council
IHS - International Code Council (ICC)
NAHB – National Association of Home Builders
NSF – NSF International
PPFA – Plastic Pipe and Fittings Association
PPI – Plastic Pipe Institute
RPA – Radiant Panel Association
UL – Underwriters Laboratories Ltd.
CSA – Canadian Standards Association
CIPH – Canadian Institute of Plumbing and Heating
NRC-IRC – Institute for Research in Construction
United States
ANSI – American National Standards Institute
ASHRAE – American Society of Heating, Refrigerating, and Air-Conditioning Engineers, Ltd.
ASTM – American Society for Testing and Materials
HUD – US Department of Housing and Urban Development
IAPMO – International Association of Plumbing & Mechanical Officials
ICC – International Code Council
IHS - International Code Council (ICC)
NAHB – National Association of Home Builders
NSF – NSF International
PPFA – Plastic Pipe and Fittings Association
PPI – Plastic Pipe Institute
RPA – Radiant Panel Association
UL – Underwriters Laboratories Ltd.
