CDL Hazardous Materials Endorsement (HME)Hazardous Materials RegulationsHard
A driver is transporting a shipment of Class 1.1 explosives. Which of the following statements about safe parking rules is correct?
- AThe vehicle must be attended at all times when parked on a public street or highway, regardless of distance from the traveled portion.
- BThe driver may park within 5 feet of the traveled portion of a public street or highway if necessary for a meal break.
- CParking is permitted on private property, provided the owner is aware and the vehicle is at least 300 feet from any structure or public road.
- DThe vehicle may be parked unattended in a designated public truck stop if it is not within 300 feet of a bridge, tunnel, or dwelling.
Show answer & explanationAnswer & explanation
Correct answer: A. The vehicle must be attended at all times when parked on a public street or highway, regardless of distance from the traveled portion.
Division 1.1, 1.2, and 1.3 explosives require constant attendance when parked on a public street or highway, regardless of distance from the traveled portion. They also have strict parking distance requirements when not attended.
Why the other options are wrong
- B. This is incorrect. Parking within 5 feet of the traveled portion of a public street or highway is generally prohibited for placarded vehicles unless the vehicle is disabled or for a short period of active loading/unloading. For Class 1.1 explosives, constant attendance is required on public roads.
- C. This is incorrect. While parking on private property with owner awareness is allowed, the specific distance requirements for unsupervised parking of Class 1.1 explosives are more stringent and parking on private property still requires specific distances from buildings, public roads, and other potential hazards. However, on public streets/highways, constant attendance is the primary rule for Class 1.1.
- D. This is incorrect. Class 1.1 explosives cannot be left unattended on a public street or highway, which includes public truck stops. Unattended parking is only allowed on private property with specific distance requirements.
Parking Rules for Explosives (Class 1.1, 1.2, 1.3)
Strict regulations govern where and how vehicles carrying Class 1.1, 1.2, and 1.3 explosives can be parked, emphasizing constant attendance on public roads and specific separation distances for unattended parking on private property.
- Must be attended at all times on public streets/highways.
- Attended means driver is awake, alert, and within 100 feet, or within 25 feet with clear line of sight.
- Unattended parking only on private property, at least 300 feet from buildings, roads, bridges, tunnels, etc.
Memory trick: Explosives demand constant watch on public roads, or a wide safety zone on private land.