Texas Residential Construction Commission
P. O. Box 13144
Austin, TX 78711
Telephone: (877) 651-TRCC
http://www.trcc.state.tx.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 

Newsletter

 

Occupational Safety and Health Administration

http://www.osha.gov