Final answer:
Federal and local laws regulate the parking of vehicles carrying Division 1.2 or 1.3 Explosive B materials, requiring them to be off the traveled part of the roadway and a safe distance from vulnerable structures.
Step-by-step explanation:
Regulations regarding the parking of vehicles carrying Division 1.2 or 1.3 Explosive B materials are typically determined by federal and local laws, specifically those relating to the transportation of hazardous materials. These rules can be very specific and may vary depending on the area and the roadway in question. However, as a general rule, the Federal Motor Carrier Safety Regulations (FMCSR) require that these vehicles must park at least off the traveled part of the roadway. In some cases, vehicles must also be within a safe distance from buildings, tunnels, bridges, and other areas that may be at increased risk in the event of an accidental explosion.
It is important for anyone handling or transporting hazardous materials to familiarize themselves with both federal and local regulations to ensure compliance and safety. Failure to comply with these regulations can lead to fines, loss of transportation licenses, or more significant legal consequences.