http://www.redcross.org/ Red Cross
http://www.atssa.com/ American Traffic Safety Services, Flagger Training
http://www.buildsafe.org/index.htm Construction Safety Council located in Hillside, IL.
http://www.nsc.org/Pages/Home.aspx National Safety Council, located in Itasca IL.
http://www.cdc.gov/niosh/ Center for Disease Control and Prevention and National Institute of Occupational Health
http://www.osha.gov/ Occupational Safety and Health Administration
http://elcosh.org/ Center to protect workers rights
http://www.csb.gov/ U.S. Chemical Safety Board