At what gross weight must trailers and semi-trailers have brakes that can be applied by the driver?

Trailers and semi-trailers are required to have brakes that can be applied by the driver when they reach a gross weight of 4500 pounds. This regulation is in place to ensure safety on the roads, as heavier trailers can be more difficult to control and can lead to hazardous situations during braking. The requirement for trailers over this weight to have brakes operated from the towing vehicle allows for more effective stopping power and enhances overall vehicle handling. This standard is part of regulatory measures aimed at minimizing accidents and improving road safety involving heavier loads.

Understanding this specific weight threshold is crucial for anyone involved in towing trailers, as compliance with brake requirements is a legal obligation that directly impacts safety.