Related links that may be of use to you.
Air Conditioning Contractors of Americal(ACCA)
Air Conditioning and Refrigeration Institute(ARI)
Air Movement and Control Association(AMCA)
American Conference of Governmental Industrial Hygienists(ACGIH)
American National Standards Institute(ANSI)
American Society of Heating, Refrigeration and Air-Conditioning Engineers, Inc.
)American Society of Mechanical Engineers
Association of Home Appliance Manufacturers
ASTM
Council of American Building Officials(CABO)
Department of Health and Human Services
Environmental Protection Agency (EPA)
Factory Mutual
Inchcape Testing Services(ETL)
Institute of Electrical and Electronic Engineers
International Code Council
National Electrical Manufacturers Association
National Environmental Balancing Bureau
National Fire Protection Association
National Fluid Power Association
National Institute of Health
NSF
Sheet Metal and Air Conditioning Contractors Association
Society of Automotive Engineers(SAE)
Southern Building Code Congress
Underwriters Laboratories, Inc.