- Air-Conditioning, Heating and Refrigeration Institute (AHRI)
- Air Movement & Control Association (AMCA)
- American Boiler Manufacturers Association (ABMA)
- American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE)
- Continental Automated Buildings Association
- Heating, Airconditioning & Refrigeration Distributors International (HARDI)
- Society of Fire Protection Engineers
- Portland Energy Conservation, Inc.
- U.S. Green Building Council (USGBC)
- U.S. Department of Energy
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