Federal OSHA Heat Illness Prevention Program:
http://www.osha.gov/SLTC/heatillness/index.html

Federal OSHA Injury and Illness Prevention Programs:
http://www.osha.gov/dsg/topics/safetyhealth/

Federal OSHA HAZWOPER Regulation:
http://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=STANDARDS&p_id=9765

Federal OSHA Hazard Communication Regulation:
http://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=STANDARDS&p_id=10099

Federal OSHA Workplace Safety and the Flu:
http://www.osha.gov/dts/guidance/flu/index.html

US EPA:
http://www.epa.gov/

DOT Hazardous Materials Regulations:
http://www.phmsa.dot.gov/hazmat/regs

California OSHA:
http://www.dir.ca.gov/dosh/

California OSHA Injury and Illness Prevention Regulation:
http://www.dir.ca.gov/Title8/3203.html

California OSHA HAZWOPER Regulation:
http://www.dir.ca.gov/Title8/5192.html

California OSHA Hazard Communication Regulation:
http://www.dir.ca.gov/Title8/5194.html

California OSHA Heat Illness Prevention Program and Regulation:
http://www.dir.ca.gov/DOSH/HeatIllnessInfo.html

California Hazardous Waste Manifesting Information (from the California Department of Toxic Substance Control):
http://www.dtsc.ca.gov/IDManifest/Manifests.cfm

American Heart Association:
http://www.heart.org/HEARTORG/

American Red Cross:
http://www.redcross.org/

American Society of Safety Engineers:
http://www.asse.org/