Association of American Railroads

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 seven Class I 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 railcar owners