CDL Hazardous Materials Endorsement (HME)Hazardous Materials RegulationsHard
A driver is transporting UN1017, Chlorine, Class 2.3 (Poison Gas), in a cargo tank. Which of the following is an additional driver requirement SPECIFICALLY for transporting Class 2.3 materials?
- AThe driver must have a written route plan and follow it strictly.
- BThe driver must carry a fire extinguisher with a minimum rating of 10-B:C.
- CThe driver must inspect the tires every 2 hours or 100 miles, whichever comes first.
- DThe driver must be able to put on a gas mask (respirator) and have it available.
Show answer & explanationAnswer & explanation
Correct answer: D. The driver must be able to put on a gas mask (respirator) and have it available.
Drivers transporting Division 2.3 (Poison Gas) materials must have a self-contained breathing apparatus (SCBA) or a gas mask (respirator) suitable for the material, and be trained in its use. This is a specific requirement due to the extreme danger of inhaling poison gases.
Why the other options are wrong
- A. Route plans are often required for certain high-hazard materials (e.g., HRCQ, explosives), but not universally for all Class 2.3.
- B. A 10-B:C fire extinguisher is a general requirement for all placarded vehicles, not specific to Class 2.3.
- C. Frequent tire inspections are a general safe driving practice, not a specific HazMat Class 2.3 requirement.
Driver Requirements for Poison Gas (Class 2.3)
Drivers transporting Division 2.3 (Poison Gas) materials must carry and be trained to use a respirator (gas mask or SCBA) appropriate for the specific material, due to the severe inhalation hazard.
- Required for Division 2.3 (Poison Gas).
- Respirator must be suitable for the material.
- Driver must be trained in its proper use.
Memory trick: Some hazmats demand extra gear and specific training, beyond the usual rules.