FEDERAL
Federal Highway Administration
www.fhwa.dot.gov
U. S. Department of Transportation
www.dot.gov
Bureau of Transportation Statistics
www.bts.gov
U.S. Environmental Protection Agency
www.epa.gov
STATE
Governor's Highway Safety Association
www.naghsr.org
Department of Transportation by State
www.fhwa.dot.gov/webstate.htm
INDUSTRY AFFILIATES
AASHTO
www.transportation.org
American Public Works Association
www.apwa.net
American Traffic Safety Services Association
www.atssa.com
Institute of Transportation Engineers
www.ite.org
Intelligent Transportation Society of America (ITS America)
www.itsa.org
National Work Zone Information Clearinghouse
www.wzsafety.tamu.edu
National Highway Traffic Safety Association
www.nhtsa.gov
National Transportation Safety Board
www.ntsb.gov
