America’s freight railroads operate the safest, most efficient and cost-effective freight transportation system in the world. The Association of American Railroads helps keep 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 six 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.

• Policy Making: Working with elected officials and leaders in Washington, DC, AAR advances sound public policy that supports the interests of the freight rail industry. These policies help ensure railroads will continue to meet America’s transportation needs today and tomorrow.
• Standard Setting: AAR is the standard-setting organization for North America’s railroads. AAR establishes safety, security and operating standards that provide seamless and safe operations across America’s nearly 140,000-mile freight rail network.
• Industry Data, Reports and Publications: AAR prepares weekly, quarterly and annual statistical reports that provide insight into the operations of North America’s freight railroads. AAR members can access our publications catalog, which offers economic, financial, policy, operational and general statistical information about freight railroads.
• Research and Technology Initiatives: Through its two subsidiaries, Railinc and MxV Rail, AAR supports continued research and development projects that enhance the safety, security and efficiency of the railroad industry.