Passengers' View Scotland - Also known as the Public Transport Users' Committee for Scotland. Provides information on how to complain about services from transport companies in Scotland. Replaced the Bus Users Complaints Tribunal.
Traffic Commissioners - Page on Department for Transport website about the Traffic Commissioners who licence lorry, bus and coach operators. Very little information.
Vehicle and Operator Services Agency - VOSA oversees MoT testing, supports the traffic commissioners and enforces standards of maintenance for road vehicles. Corporate information only.