CDL Hazardous Materials Endorsement (HME)Hazardous Materials RegulationsHard
A driver is transporting a shipment of UN1075, Liquefied Petroleum Gas (LPG), a Class 2.1 (Flammable Gas), in a cargo tank. The driver needs to make an unscheduled stop for a short break. Which of the following parking locations is generally NOT permitted for this type of hazardous material?
- AOn a public street within 10 feet of a bridge.
- BOn a public street more than 5 feet from the traveled portion of the road.
- CAt a facility where the loading/unloading of LPG occurs, with qualified personnel present.
- DIn a designated hazardous materials parking area at a truck stop.
Show answer & explanationAnswer & explanation
Correct answer: A. On a public street within 10 feet of a bridge.
Federal regulations prohibit parking a vehicle containing Division 2.1 (Flammable Gas) within 300 feet of a bridge, tunnel, or building with people. Parking within 10 feet of a bridge is a direct violation.
Why the other options are wrong
- B. Parking on a public street away from the traveled portion is usually acceptable, provided it's not near prohibited structures or populated areas.
- C. Parking at an authorized facility with qualified personnel for handling the material is permitted and often required.
- D. Designated hazardous materials parking areas are generally safe and permitted.
HazMat Parking Restrictions (Flammable Gas)
Federal regulations prohibit parking vehicles carrying Division 2.1 (Flammable Gas) within 300 feet of specific structures like bridges, tunnels, or buildings where people might gather.
- Applies to Division 2.1 (Flammable Gas) and Class 1 (Explosives) materials.
- Prohibited within 300 feet of a bridge, tunnel, or dam.
- Prohibited within 300 feet of a place where people gather (e.g., residence, restaurant, store).
- These rules aim to minimize risk to the public in case of an incident.
Memory trick: No bridges, no tunnels, no buildings, no busts.