Hazardous Chemicals

United States Chemical Safety and Hazard Investigation Board
http://www.csb.gov/ 

The Center for MSDS Partnership
http://www.fpn.navy.mil/ 

NFPA Chemical Hazard Labels
http://www.orcbs.msu.edu/Chemical/nfpa/nfpa.html 

1996 North American
http://www.tc.gc.ca/canutec/ 

Emergency Response Guidebook
http://www.tc.gc.ca/canutec/ 

Chemical Safety/MSDS from OSHA
http://www.osh.net/chemical.htm