The American Bus Association (ABA) co-ordinates connecting ABA affiliated bus schedules and seeks to improve bus terminals, travel, and tourism. The ABA functions as the trade association of the intercity bus industry, and represents the motorcoach industry's interests in Washington, D.C. It also facilitates relationships between North American motorcoach and tour companies and all related segments of the travel and supplier industries and promotes travel by motorcoach to consumers.

The ABA represents approximately 800 motorcoach and tour companies in the United States and Canada. Its members operate charter, tour, regular route, airport express, special operations and contract services (commuter, school, transit). Another 2,300 member organizations represent the travel and tourism industry and suppliers of bus products and services who work in partnership with the North American motorcoach industry. ABA has a total membership of more than 3,000.