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 Wisconsin, state law does place restrictions on riding in the open bed of a truck. According to Wisconsin Statute 346.94(4), no person may operate a motor vehicle on a highway with a person riding in the open bed or open cargo area of the vehicle unless certain conditions are met. These conditions include situations where the vehicle is being operated in a parade authorized by law, on a farm or in agricultural operations, or the vehicle is being operated in an emergency or for road construction or maintenance purposes. Additionally, the law allows for riding in the open bed of a truck if the vehicle is traveling at speeds of 25 miles per hour or less. It's important to note that local ordinances may impose additional restrictions, and laws can change, so it's always advisable to check the most current regulations before allowing passengers to ride in the open bed of a truck.