Final answer:
According to the United States Department of Transportation hazardous materials regulations, shipping papers for a vehicle placarded for hazardous materials must be kept inside the vehicle's cab.
Step-by-step explanation:
According to the United States Department of Transportation hazardous materials regulations, shipping papers for a vehicle placarded for hazardous materials must be kept inside the vehicle's cab.
The shipping papers provide important information about the hazardous materials being transported, including their proper handling and emergency response procedures.
Placing the shipping papers inside the vehicle's cab ensures that they are easily accessible to the driver and emergency responders in the event of an incident or inspection.