Which type of trailer does not require safety chains?

The correct answer is that a farm trailer does not require safety chains because it is typically used in agricultural settings and is often towed at lower speeds and under specific conditions that make additional safety measures less necessary. These trailers are designed for transporting farm equipment and materials and are often attached to tractors, which have different towing requirements than standard vehicles.

Safety chains are generally required for trailers that are towed by passenger vehicles at higher speeds, producing a greater risk of disconnecting from the towing vehicle. Utility trailers, car haulers, and boat trailers are often required to have safety chains to provide an extra layer of security and ensure that the trailer does not become completely unattached in case of an emergency. Therefore, the unique usage and towing conditions of farm trailers exempt them from this regulation.