—(1) Every high intensity gas-discharge headlamp fitted to a motor vehicle to which this rule applies shall be installed in such a manner as to comply with —
regulation 48 (Uniform Provisions Concerning the Approval of Vehicles with Regard to the Installation of Lighting and Light-signalling Devices) of Addendum 47 to the Agreement; or
such other specifications as the Registrar may approve from time to time.
(2) Where a headlamp levelling device is necessary for a high intensity gas-discharge headlamp to comply with paragraph (1), the device shall be automatic.
(3) Every high intensity gas-discharge headlamp or headlamp levelling device fitted to a motor vehicle shall, at all times while the motor vehicle is used on a road, be maintained in proper working condition.
(4) This rule shall apply to every motor vehicle fitted with high intensity gas-discharge headlamps registered on or after 1st January 2010, except any such motor vehicle which is —
a motor cycle;
a scooter; or
a motor vehicle which, the Registrar is satisfied cannot, by virtue of its construction or use, practically comply with the requirements of the Act.
(5) In this rule, “high intensity gas-discharge headlamp” means a lamp which contains an inert gas and emits light when it comes into contact with a high-voltage electrical arc.