Pennsylvania Department of General Services  
18th and Herr Streets, Room 103 
Harrisburg, PA 17125 
Telephone:  (717) 783-7610 

 http://www.dgs.state.pa.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