On trucks, truck tractors, semitrailers, pole trailers, and buses that are at least 80 inches in width, reflectors should be placed between ____ from the ground.

On trucks, truck tractors, semitrailers, pole trailers, and buses that are at least 80 inches in width, reflectors should be placed between 24 and 60 inches from the ground. Be sure to know the reflector requirements for your specific vehicle.
DMV Writen Test