Final answer:
To transport personnel safely in a dump truck's bed, a restraint system must be installed and the dump mechanism must be deactivated to comply with occupational safety regulations.
Step-by-step explanation:
When transporting personnel in the bed of a dump truck, specific safety measures must be adhered to. Before utilizing the dump truck for personnel transport, a safety device such as a tailgate or other form of restraint system must be installed to prevent accidental falls of the passengers. Moreover, it is absolutely necessary to deactivate the dump mechanism to prevent any unintended dumping while people are in the truck's bed, which can lead to serious injuries or even fatalities.
Compliance with occupational safety and health regulations is crucial, and specific guidelines should be followed as laid out by the Occupational Safety and Health Administration (OSHA) or the relevant local governing body. These precautions help ensure the safety of all individuals who are being transported in a manner that is not typical use for a dump truck.