An operator card shall be displayed—
| (a) | if the motor vehicle is fitted with a transparent windscreen in front, by affixing such operator card in an upright position on the inside of the windscreen in such a manner that the print on the face of the operator card is clearly legible from the outside to a person standing in front or to the left front of such motor vehicle; or |
| (b) | if the motor vehicle is not fitted with a transparent windscreen in front, by affixing such operator card— |
| (i) | in a conspicuous position on the left side of the vehicle in such a manner that the print on the face of such operator card is clearly legible from that side; and |
| (ii) | if such operator card is exposed to the weather, on the inside of the transparent front of a durable watertight holder, for protection. |
