257(1)When one vehicle is towing another the drawbar or other connection shall be of sufficient strength to pull all mass towed thereby and said drawbar or other connection shall not exceed five metres from one vehicle to the other except the connection between any two vehicles transporting poles, pipes, machinery, or other objects of such structural nature that they cannot readily be dismembered.

257(2)When one vehicle is towing another and the connection consists of a chain, rope, or cable, there shall be displayed upon such connection a white flag or cloth no less than thirty centimetres square.