Wisconsin Department of Commerce, Safety and Buildings Division
201 W. Washington Avenue
P. O. Box 7082
Madison, WI 53707-7082
Telephone: (608) 261-8500
http://commerce.wi.gov/.

Bureau of Alcohol, Tobacco, Firearms, and Explosives

http://www.atf.gov

Department of the Interior

http://www.doi.gov

Department of Transportation

http://www.dot.gov

Explosives Academy 

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Occupational Safety and Health Administration