Agricultural chemical data
Chemical Abstract system (CAS) database
Chemical Reactivity Worksheet
Emergency Response and Research Institute
Environmental Abbreviations, Acronyms & Terms
FedEx Dangerous goods Shipping Guide (.pdf)
Household hazardous chemical alternatives
MSDS Directory
National Work Zone Safety Information Clearinghouse
NOAA Office of Response and Restoration (oil spill resource)
ToxNet - Databases on toxicology, hazardous chemicals, environmental health & toxic releases
U.S. National Response Team

ORGANIZATIONS:

American National Standards Institute (ANSI)
American Red Cross
ASTM International
International Air Transport Association (IATA)
National Safety Council
Underwriter Laboratories (UL)

PROFESSIONAL ASSOCIATIONS:

American Conference of Governmental Industrial Hygienists (ACGIH)
American Industrial Hygiene Association (AIHA)
American Society of Heating, Refrigeration and A/C Engineers (ASHRAE)
American Society of Safety Engineers (ASSE)
American Society of Training and Development (ASTD)
Board of Certified Safety Professionals (BCSP)
National Fire Protection Association (NFPA)
The National Safety Management Society (NSMS)
Semiconductor Environmental, Safety & Health Association (SESHA)