The American Association of State Highway and Transportation Officials provides education, research, news, and other resources for the transportation industry.

555 12th St., NW, Suite 1000
Washington, D.C. 20004-1200
Tel: (202) 624-5800
Email: info@aashto.org
https://www.transportation.org

The American Public Transportation Association aims to improve and strengthen public transportation through advocacy, innovation, and information sharing.

1300 I Street, NW, Suite 1200 East
Washington, D.C. 20005-3393
Tel: (202) 496-4800
Fax: (202) 496-4324
https://www.apta.com

The American Society of Highway Engineers promotes safe, efficient, and sustainable transportation through education and fellowship.

610 Radcon St.
Johnstown, PA 15904-1418
http://ashe.pro

The Institute of Transportation Engineers offers information on membership, careers, and certification.

1627 Eye Street, NW, Suite 600
Washington, D.C. 20006-4087
Tel: (202) 785-0060
Fax: (202) 785-0609
Email: ite_staff@ite.org
https://www.ite.org

The U.S. Department of Transportation provides information about the federal transportation system.

1200 New Jersey Avenue, SE
Washington, D.C. 20590-0001
Tel: (855) 368-4200
https://www.transportation.gov