Chapter 6.5. Motor Carrier Safety * Article 3. General Driving Requirements Fueling Restrictions.
When a vehicle is being refueled, the nozzle of the fuel hose shall be in contact with the intake of the fuel tank throughout the entire time of refueling. No driver or motor carrier shall permit a vehicle to be fueled while the engine is running, a radio on the vehicle is transmitting, the vehicle is close to any open flame or ignition source (including persons who are smoking), or passengers are aboard any bus except one fueled with diesel fuel in an open area or in a structure open on both the entrance and exit ends.