• ABC - Associated Builders and Contractors
  • ACCA - Air Conditioning Contractors of America
  • AFE- Association for Facility Engineering Engineers, Inc.
  • ASHRAE - American Society of Heating, Refrigerating and Air Conditioning
  • EPRI - Electric Power Research Institute
  • IARW - International Association of Refrigeration Warehouses
  • IIAR - International Institute of Ammonia Refrigeration
  • IRC- Industrial Refrigeration Consortium
  • MCAA - Mechanical Contractors Association of America
  • RETA - Refrigerating Engineers & Technicans Association
  • RSES - Refrigeration Service Engineers Society
  • SMACNA - Sheet Metal and Air Conditioning Contractors' National Association

Environmental Resources

  • ANSI - American National Standards Institute
  • ISO- International Organization for Standardization

Trade Publications

Government Resources

Commercial Sites in alphabetical order

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