Wyoming Corporations and UCC Department
Office of the Secretary of State
110 Capitol Building
Cheyenne, WY 82002
Telephone:  (307) 777-7311
Fax (307) 777-5339
http://soswy.state.wy.us/ 

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