What must carriers provide to drivers transporting Class A or B explosives?

The correct choice is that carriers must provide drivers transporting Class A or B explosives with a copy of FMCSR Part 397. This section of the Federal Motor Carrier Safety Regulations (FMCSR) outlines the safety requirements and responsibilities for transporting hazardous materials, including explosives. It specifically covers the necessary precautions, routing requirements, and driver training needed to ensure the safe transportation of these very dangerous materials.

Providing drivers with a copy of FMCSR Part 397 ensures they are informed about the legal regulations regarding explosive transportation, including what to do in the event of an emergency, which routes to take, and how to properly handle the explosives. This is crucial for minimizing risk and ensuring compliance with the law, thereby enhancing safety for the drivers and the general public.

Other options may seem valuable or relevant, but they do not fulfill the regulatory requirement specific to the safe transport of explosives. For instance, a company handbook might contain useful information about company practices but does not cover the legal requirements regarding hazardous materials. Similarly, a GPS navigation system and a list of emergency contacts are practical but are not mandated specifically for drivers handling Class A or B explosives under the law.