American Association of Railroads (AAR)

The American Association of Railroads (AAR) is a trade organization representing the major freight railroads in the United States. It develops standards, safety practices, and policies to ensure efficient and safe railway operations. The AAR also provides industry data, advocates for rail transportation interests, and promotes collaboration among member companies. Essentially, it helps coordinate and improve the functioning of the freight rail system, which is vital for moving goods across the country.