A permit issued in respect of a motor vehicle in terms of regulation 87(2)(b) or 87(3)(b), shall be displayed-
(a) if such motor vehicle has a rear window, on the inside of such window in the lower left-hand corner when viewed from the rear of the motor vehicle, so that the inscription thereon is legible through the glass; or
(b) if such motor vehicle does not have a rear window, on the rear of the motor vehicle in a conspicuous place.

