Association of American Railroads

America’s freight railroads operate the safest, most efficient, cost-effective, and environmentally sound freight transportation system in the world — and the Association of American Railroads (AAR) is committed to keeping it that way. Founded in 1934, AAR is the world’s leading railroad policy, research, standard setting, and technology organization that focuses on the safety and productivity of the U.S. freight rail industry. AAR Full members include the major freight railroads in the United States, Canada and Mexico, as well as Amtrak. Affiliates and Associates include non-Class I and commuter railroads, rail supply companies, engineering firms, signal and communications firms, and rail car owners.

425 3rd Street SW, Suite 1000, Washington, DC 20024.

The Signal: Your quick stop for freight rail news

Get freight rail industry news right to your inbox, from important policy updates to fun facts about America’s private, nearly 140,000-mile network.

We use cookies to create a better user experience, analyze site traffic, personalize content and serve targeted ads. By using this site, you consent to cookie use. Learn more in Privacy Policy in the footer below. If you are a California resident, refer to our CA Privacy Notice, which explains your CA privacy rights and how you can exercise them.