Final answer:
A pole trailer weighing more than 3,000 pounds must have its own braking system and may need additional safety features like lights and reflectors, according to laws that vary by jurisdiction.
Step-by-step explanation:
The question pertains to the regulations for trailers used on public roads. In many places, the law requires that a pole trailer weighing more than 3,000 pounds must have its own braking system. This is a safety measure put in place to ensure that the trailer can be stopped effectively, regardless of the towing vehicle's capabilities. Additionally, such trailers may be required to have other safety features like lights, reflectors, and sometimes a separate license plate. The specific requirements can vary by jurisdiction, so it's important for drivers to check the regulations in their area.