Motor boat towing

A motor boat when towing any vessel or raft shall, in addition to the side lights prescribed in regulation 70(b), carry two bright white lights in a vertical line one over the other not less than 2' apart. Both of these lights shall be of the same character. Such motor boat may carry a small white light astern for the guidance of the vessel being towed, but such light shall not be visible forward of the beam. All rafts shall exhibit a white light at the head and another at the stern.