(1) | No person shall operate on a public road any motor vehicle, other than a tractor or a trailer drawn by a tractor, unless it is equipped on both sides with either the flasher type or illuminated window-type direction indicators which comply with the provisions of regulation 194 or 195, as the case may be: Provided that where a motor vehicle forms part of a combination of motor vehicles and a direction indicator with which such motor vehicle is required to be equipped is obscured by any trailer forming part of such combination, the trailer shall, subject to the provisions of regulation 197, be deemed to be part of such motor vehicle. |