IAPMO, the world’s largest plumbing code writing body, joins several other organizations as a leading member of GreenMech, including Carrier, NIBCO, Ferris State University, Legend Valve, Mechanical Contractors Association of America, ABCO Refrigeration, Watts Radiant, United Association (UA), Floor Heat Company, Mechanical Contracting Education & Research Foundation (MCERF), Legend Hydronics, Bacharach, HVAC Excellence, and Mechanical Services Contractors of America (MSCA).