In most states there are laws (statutes) and local ordinances (enacted by cities or towns) that place restrictions on people (and animals) riding in the open (uncovered) bed of a truck. But the specifics of these laws vary significantly from state to state

In approximately 19 states there is no state law against riding in the open bed of truck. These states include:

• Alabama

• Alaska

• Delaware

• Idaho

• Illinois

• Iowa (local ordinances may prohibit it)

• Kentucky

• Minnesota

• Mississippi

• Montana

• New Hampshire

• North Dakota

• Oklahoma

• South Dakota

• Vermont

• Washington

• West Virginia

• Wyoming

Laws are constantly evolving—a state legislature may enact a new statute or a city or town may pass a new ordinance and change the law at any time—so always be sure to determine the current status of the law in your state, city, or town.

In Hawaii, state law does restrict passengers from riding in the bed of a pickup truck. According to Hawaii Revised Statutes §291-14, no person shall ride in the bed or load-carrying area of a pickup truck on any state highway if the vehicle is traveling at a speed of 25 miles per hour or more. However, there are exceptions to this rule, such as if the passenger is 12 years of age or older, or if the vehicle is being operated in a parade, caravan, or exhibition which is authorized by law. Additionally, the law allows for passengers in the bed of a pickup truck if there is an emergency or if no seating is available in the cab and the side racks of the vehicle are securely attached and the tailgate is securely closed. It's important to note that local ordinances may impose additional restrictions, and laws can change, so it's advisable to check the most current regulations before allowing passengers to ride in the open bed of a truck in Hawaii.