Under which circumstances is it acceptable for persons under 16 to occupy the open cargo area of a truck, trailer, or semitrailer?

• When there is a secured seat with a safety belt available in the cargo area
• In the event of life-threatening emergencies
• If they are workers involved in road construction or maintenance
• All of the above
  Explanation:

  "It is allowed, under the following circumstances, for a driver of a truck, trailer, or semitrailer to permit a person under age 16 to ride in the unenclosed or unroofed cargo storage area of the vehicle: 1) The cargo storage area of the vehicle is equipped with a properly secured seat and a safety belt that complies with federal standards for occupant restraining devices. 2) An emergency exists that threatens the life of the driver or the person being transported in the cargo storage area of the truck, trailer, or semitrailer. 3) The passengers are workers performing specialized highway or street maintenance or construction under the authority of a public agency."