A driver is transporting a cargo tank of UN1993, Flammable Liquids, N.O.S. (Class 3, PG II). During a pre-trip inspection, the driver discovers a small leak from a valve on the cargo tank. What is the driver's immediate responsibility?
- ACall a tow truck to move the vehicle off the road immediately.
- BContinue the trip as planned, noting the leak for repair at the destination.
- CProceed to the nearest repair facility to fix the leak.
- DAttempt to stop the leak if it can be done safely without special tools.
Show answer & explanationAnswer & explanation
Correct answer: D. Attempt to stop the leak if it can be done safely without special tools.
Federal regulations (49 CFR 177.854) state that a driver discovering a hazardous material leak must take all practicable means to stop the leak or prevent the material from spreading. If the leak cannot be stopped and the vehicle safely moved, the driver must immediately notify the proper authorities. Proceeding with a known leak is unlawful and dangerous.
Why the other options are wrong
- A. While moving off the road might be part of an emergency response, the immediate responsibility is to address the leak itself, if safe to do so, before considering further movement or external assistance.
- B. Continuing the trip with a known leak of a flammable liquid is a serious violation and extremely dangerous.
- C. Proceeding to a repair facility with an active leak of a flammable liquid is unsafe and generally prohibited.
HazMat Leak: Driver's Immediate Action
Upon discovering a hazardous material leak, the driver's immediate responsibility is to take all practicable means to stop the leak or prevent the material from spreading, if it can be done safely. If not, the driver must isolate the area and notify authorities.
- Safety first: only attempt if safe.
- Containment/stopping the leak is paramount.
- If unsuccessful or unsafe, notify emergency services.
- Never continue transport with an uncontained leak.
Memory trick: Leak found? First, safe stop; then, contain or call the cops!