American Bus Association Represents motorcoach and tour companies in the US and Canada. Members operate charter, tour, regular route, and contract services. http://www.buses.org/

American Transit Services Council Encourages transit agencies and state and local governments to let public, nonprofit, and private providers compete for transit contracts. http://www.transitatsc.org/

Buses International Association Organization of persons who are professionally involved in the management of companies or organizations that operate or manufacture buses. http://www.busesintl.com/

Commercial Vehicle Safety Alliance Dedicated to improving motor carrier, driver, vehicle, and cargo safety standards, compliance, education, and enforcement. http://www.cvsa.org/

Motor Bus Society Collects and publishes information about the history and development of the bus industry. http://www.motorbussociety.org/

United Motorcoach Association Represents bus and motorcoach manufacturers, suppliers, and related businesses. http://www.uma.org/