AHRI is one of the largest trade associations in the nation, representing more than 300 heating, water heating, ventilation, air conditioning and commercial refrigeration manufacturers within the global HVACR industry. AHRI advocates on behalf of its members at all levels of government, working to ensure that member’s interests are included in final drafts of legislation. We also have a certification program that is relied heavily upon by regulators for accurate and unbiased evaluation of heating, water heating, ventilation, air conditioning, and commercial refrigeration equipment. Lastly, AHRI develops industry-recognized performance standards for industry equipment. These three tiers are at AHRI’s core.