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

Electrical 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

National Science Foundation

Sheet Metal and Air Conditioning Contractors Association

Society of Automotive Engineers(SAE)

Southern Building Code Congress

Underwriters Laboratories, Inc.