4.5 – Prohibited Practices Avoid fueling your bus with riders on board unless absolutely necessary. Never refuel in a closed building with riders on board. Don't talk with riders, or engage in any other distracting activity, while driving. Do not tow or push a disabled bus with riders aboard the vehicle, unless getting off would be unsafe. Only tow or push the bus to the nearest safe spot to discharge passengers. Follow your employer's guidelines on towing or pushing disabled buses.
2005 Commercial Driver’s License Manual 4.6 – Use of Brake-door Interlocks Urban mass transit coaches may have a brake and accelerator interlock system. The interlock applies the brakes and holds the throttle in idle position when the rear door is open. The interlock releases when you close the rear door. Do not use this safety feature in place of the parking brake.