CDL Hazardous Materials Endorsement (HME)Hazardous Materials RegulationsHard
A driver is preparing to transport a shipment of UN1017, Chlorine (Class 2.3, Poison Gas). Which of the following statements about the driver's specific requirements for transporting this material is TRUE?
- AThe driver must maintain a continuous visual observation of the cargo tank while in transit.
- BThe driver is required to receive additional training beyond the basic HazMat endorsement for Class 2.3 materials.
- CThe driver must have a medical certificate specifically for transporting poison gas.
- DThe driver must carry a self-contained breathing apparatus (SCBA) in the vehicle.
Show answer & explanationAnswer & explanation
Correct answer: D. The driver must carry a self-contained breathing apparatus (SCBA) in the vehicle.
Federal Hazardous Materials Regulations (49 CFR 397.15) specifically require that drivers transporting Division 2.3 (Poison Gas) in a cargo tank motor vehicle or in a portable tank on a transport vehicle must have a self-contained breathing apparatus (SCBA) readily available and in good working order. This is a crucial safety measure due to the extreme danger of poison gases.
Why the other options are wrong
- A. Continuous visual observation of the cargo tank while in transit is not a general requirement for poison gas; attendance rules apply when stopped, but not typically 'continuous visual observation' while driving.
- B. While general hazmat training is required for the endorsement, there isn't a separate 'additional training' certification specifically for Class 2.3 beyond the general hazmat training requirements, although specific commodity training is always good practice.
- C. While medical fitness is generally required for CDL, there isn't a specific medical certificate solely for poison gas transport beyond the standard DOT medical card.
Driver Requirements for Poison Gas (Division 2.3)
Drivers transporting Division 2.3 (Poison Gas) in cargo tanks or portable tanks must carry a self-contained breathing apparatus (SCBA) in the vehicle, readily available and in good working order.
- Applies to Division 2.3 (Poison Gas).
- Specifically for cargo tank motor vehicles or portable tanks.
- SCBA must be readily available.
- SCBA must be in good working order.
Memory trick: Poison gas means SCBA on hand, ready to breathe, understand.