Attendants on trailers

Where a motor vehicle is drawing a trailer or trailers the weight of which exceeds ten hundred weights unladen on a road, one person, in addition to the driver of the vehicle, shall 130 be carried either on the vehicle or on a trailer for the purpose of attending to the trailer or trailers: Provided that this regulation shall not apply in the case of– (a) any articulated vehicle; (b) any closed trailer not constructed or adapted to carry any load other than a plant or special appliance or apparatus which is a permanent or essentially permanent fixture and not exceeding 2 tons in total weight; (c) any trailer drawn by a private motor car. rope.