CDL Hazardous Materials Endorsement (HME)Loading and Unloading Hazardous MaterialsHard
A driver is transporting Division 1.3 (Explosives) materials. What is the maximum aggregate gross weight of Division 1.3 materials that can be transported on a single vehicle without special routing or permits?
- A2,000 lbs
- B500 lbs
- C1,000 lbs
- D5,000 lbs
Show answer & explanationAnswer & explanation
Correct answer: D. 5,000 lbs
For Division 1.3 explosives, the maximum aggregate gross weight allowed on a single vehicle without special routing, permits, or being subject to the 'explosives routes' requirements is 5,000 lbs (2,268 kg). Exceeding this amount triggers more stringent regulations, including the use of designated hazardous materials routes.
Why the other options are wrong
- A. This limit is incorrect for Division 1.3 explosives; 1,000 lbs is often a general placarding threshold, but not the routing threshold for this specific division.
- B. This limit is incorrect for Division 1.3 explosives; it's closer to limits for some other hazmat or lower explosive divisions.
- C. This limit is incorrect for Division 1.3 explosives.
Explosives Routing Threshold (Division 1.3)
Division 1.3 explosives exceeding 5,000 lbs aggregate gross weight require adherence to specific hazardous materials routes and potentially special permits.
- Division 1.3 explosives have a fire hazard with minor blast effects.
- Weight limits are set to manage risk on public roads.
- Exceeding the limit triggers more restrictive transport regulations.
Memory trick: Explosives need special 'routes' if they're too 'heavy'.