AAR
Founded in 1934, Association of American Railroads (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. 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.
URL: http://www.aar.org