Michigan Builder's Unit       
Bureau of Commercial Services 
Department of Consumer and Industry Services 
P.O. Box 30245 
Lansing, MI 48909

Telephone: (517) 241-9254 
http://www.michigan.gov/cis/ 

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 

Newsletter

Occupational Safety and Health Administration