Each state has its own laws restricting how passengers may ride in the cargo areas of vehicles, excluding the 17 states that currently have no relevant laws regarding the subject. In California, you can ride in the back of a truck if you do it according to our state’s rules and regulations.
California addresses the hazards of riding in cargo areas by restricting all riders, with just a few exceptions. According to California law, you cannot ride in the bed of a truck unless you comply with one of these situations:
A federal-approved restraint system restrains you while in the bed of the truck.
You are riding in a farmer-owned vehicle driven only on farming land or on one mile of highway between one part of a farm to another.
You are in a parade (as long as the vehicle does not drive over eight miles per hour).
You have an emergency situation that calls for the need to ride in the bed of a truck.
If your situation does not match one of these four acceptable scenarios, you cannot legally ride in the bed of a truck in California."
We need more real parents that encourage children to learn things and experience things that would definitely not be acceptable protocol to the HPA. (Helicopter Parents Association).