National Refrigerants, Inc.
National Refrigerants is an independent worldwide distributor of refrigerants (CFC, HCFC, HFC) and all associated refrigerant management services.
Air Conditioning and Refrigeration Institute - ARI
"ARI is the national trade association representing manufacturers of more than 90 percent of U.S. produced central air-conditioning and commercial refrigeration equipment. (…) ARI develops and publishes technical standards for industry products. ARI standards establish rating criteria and procedures for measuring and certifying product performance."
Air Conditioning and Refrigeration Distributors International -
Conditioning Contractors of America - ACCA
Society of Heating, Refrigerating and Air Conditioning Engineers,
Inc. - ASHRAE
American Technician Excellence - NATE
Technical School - Vo-Tech
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