Transporting Passengers and Hazardous Materials Awareness
This domain tests passenger-bus safety rules and basic hazardous materials awareness. The exam asks about aisle clearance, fueling, railroad crossings, placards, and shipping papers.
Passenger rules
Keep the aisle and emergency exits clear. Passengers must stay behind the standee line when standing is permitted. Do not fuel a bus with passengers aboard. Know how to use emergency exits and evacuation procedures. A bus carrying passengers must stop at railroad crossings, open the door, look and listen, and close the door before crossing.
Hazardous materials awareness
Hazardous materials require shipping papers, emergency response information, and proper placards. Placards are generally required when carrying 1,001 pounds or more aggregate gross weight of a hazard class, and for certain materials in any amount. Do not smoke or park near hazards. The HM endorsement and required training apply to covered quantities.
Worked example
A bus carrying passengers approaches a railroad crossing. The driver must stop between 15 and 50 feet before the nearest rail, open the door, look and listen, then close the door and cross without shifting gears. A 20-foot stop is within the range. Stopping 10 feet away is too close, and rolling through without stopping is a violation even if no train is visible.
Traps that cost marks
Treating the 15–50 foot rule as optional; fueling with passengers aboard; blocking the aisle with luggage; and assuming placards are required only for bulk tanks. Also do not confuse the 1,001-pound placard threshold with the endorsement threshold.