### Road Traffic (Construction and Maintenance of Vehicles) Regulations (words omitted as spent—E.R. 2 of 2012) 《道路交通(車輛構造及保養)規例》

99. Single units for obligatory front and headlamps
(1) In the case of a vehicle which carries one obligatory front lamp and one obligatory headlamp, such lamps may be combined so as to form a single unit.
(2) In the case of a motor cycle with a sidecar attached thereto, being a vehicle which carries 2 obligatory front lamps and one obligatory headlamp, one of the obligatory front lamps may be combined with the obligatory headlamp so as to form a single unit.
(3) In the case of a vehicle which carries 2 obligatory front lamps they may be combined—
(a) in the case of a vehicle which has only 2 obligatory headlamps, with such lamps; or
(b) with the 2 obligatory headlamps in the matched pair of headlamps which are at least as far away from the vertical plane passing through the longitudinal axis of the vehicle as any other obligatory headlamps in another matched pair of obligatory headlamps,
so as to form 2 single units each comprising an obligatory headlamp and an obligatory front lamp.

100. Requirements for every obligatory headlamp
Every obligatory headlamp carried by a vehicle shall comply with the following requirements—
(a) it shall be securely fixed to the vehicle;
(b) it shall be so constructed and maintained that the direction of the beam of light emitted therefrom can be adjusted whilst the vehicle is stationary so that the headlamp when lit emits the type of beam which it is required to be capable of emitting by this Part; and
(c) it shall be kept in a clean and efficient condition.

101. Requirements for every matched pair of obligatory headlamps
Every matched pair of obligatory headlamps carried by a vehicle shall comply with the following requirements—
(a) both headlamps in the pair shall have the same area and shape when illuminated;
(b) both headlamps in the pair shall have their wiring arranged so that—
(i) if they can emit either main beams or dipped beams, the beams which they can emit can only be switched on or off together;
(ii) if they can emit both main beams and dipped beams, the dipped beams can only be switched on or off together and the main beams can only be switched on or off together;
(iii) if they can emit supplementary main beams, such beams can only be switched on or off together with the main beams emitted by another pair of obligatory headlamps; and
(c) both headlamps in the pair shall, when lit, emit beams of light of the same colour.

102. Colour of headlamp beams
Every main beam or dipped beam emitted by a headlamp or fog lamp carried by a vehicle shall be a beam of white or yellow light.

103. Obligatory rear lamps
Every vehicle listed in column 1 of the Seventh Schedule shall carry obligatory rear lamps in accordance with the requirements specified in the Seventh Schedule in respect of that vehicle.

### Road Traffic (Construction and Maintenance of Vehicles) Regulations (words omitted as spent—E.R. 2 of 2012) 《道路交通(車輛構造及保養)規例》

104. Character of obligatory rear lamps
(1) Subject to paragraph (2), every obligatory rear lamp carried on a vehicle shall, if circular, have an illuminated area not less than 50 millimetres in diameter or, if not circular, have an illuminated area—
(a) not less than the area of a circle 50 millimetres in diameter; and
(b) of such a shape that a circle of 25 millimetres in diameter may be inscribed therein.
(2) Every obligatory rear lamp carried on a motor cycle with a sidecar attached thereto shall, if circular, have an illuminated area of not less than 40 millimetres in diameter or, if not circular, have an illuminated area—
(a) of not less than the area of a circle of 40 millimetres in diameter; and
(b) of such a shape that a circle of 25 millimetres in diameter may be inscribed therein.
(3) Every electric bulb used in an obligatory rear lamp carried on a vehicle shall have a rated wattage of not less than 5 watts and the rated wattage thereof shall be indelibly marked upon the glass or the metal cap thereof in a readily legible manner.
(4) When 2 obligatory rear lamps are carried on a vehicle, both lamps shall when illuminated have the same appearance and the same illuminated area, and if such lamps are electrically operated, the wiring shall be so arranged that in the event of any failure of a bulb in either of the lamps the other lamp shall not thereby be extinguished.

### Road Traffic (Construction and Maintenance of Vehicles) Regulations (words omitted as spent—E.R. 2 of 2012) 《道路交通(車輛構造及保養)規例》

105. Reversing lamps
(1) No vehicle shall carry more than 2 reversing lamps.
(2) Every reversing lamp carried on a vehicle shall comply with the following requirements—
(a) it shall be illuminated by electricity;
(b) it shall be so constructed that it cannot be switched on otherwise than—
(i) automatically by the selection of the reverse gear of the vehicle; or
(ii) by the operation of a switch by the driver of the vehicle, being a switch which serves no other purpose;
(c) the rated wattage of the electric bulb or the total rated wattage of all such bulbs with which it is fitted or the rated wattage of the sealed beam lamp with which it is fitted shall not exceed 24 watts; and
(d) it shall be so constructed, fitted and maintained that the light emitted thereby is at all times a beam which is deflected downwards to such an extent that it is incapable of dazzling any person who is on the same horizontal plane as the vehicle at a greater distance than 8 metres from the reversing lamp and whose eye-level is not less than one metre above that plane.
(3) Where a reversing lamp is so constructed and fitted that it can be switched on by the operation of a switch by the driver of the vehicle, the vehicle shall be equipped with a device so fitted as to be readily visible to the driver at all times when in his seat and so designed as to indicate when the reversing lamp is illuminated.

106. Obligatory reflectors
Every vehicle listed in column 1 of the Eighth Schedule shall be fitted with reflectors in accordance with the requirements specified in the Eighth Schedule in respect of that vehicle.

107. Character of reflectors
Every obligatory reflector shall comply with the following requirements—
(a) the reflecting area shall, if circular, be not less than 40 millimetres in diameter or, if not circular, be—
(i) not less than the area of a circle 40 millimetres in diameter; and
(ii) of such a shape that a circle of 25 millimetres in diameter may be inscribed therein;
(b) the reflecting area shall be of such a shape as to be capable of lying wholly within a circle of 150 millimetres in diameter;
(c) the reflector shall be so attached to the vehicle that the reflecting area of the reflector is in a vertical position and facing squarely to the rear; and
(d) the reflector shall be kept clean and shall be plainly visible from the rear.

### Road Traffic (Construction and Maintenance of Vehicles) Regulations (words omitted as spent—E.R. 2 of 2012) 《道路交通(車輛構造及保養)規例》

109. Side marker lamps
(1) Subject to paragraph (2), every trailer forming part of combination of 2 or more vehicles with a total overall length of more than 11 metres shall when on any road during the hours of darkness or poor visibility conditions carry on each side of the longitudinal axis of the trailer the following side marker lamps which shall be attached to the trailer or the load, if any, carried thereby—
(a) one lamp in such a position that no part of its illuminated area is more than 3 metres nor less than 2 metres from the foremost part of the front corner marker lamp required to be carried by regulation 108;
(b) one lamp in such a position that no part of its illuminated area is more than 3 metres nor less than 2 metres from the rearmost part of the trailer (inclusive of the load, if any, carried); and
(c) such other lamps between the lamps mentioned in subparagraphs (a) and (b) in such positions as will ensure that the distance between the nearest part of the illuminated area of any one side marker lamp and the nearest part of the illuminated area of the side marker lamp next thereto is not more than 3 metres nor less than 2 metres. (E.R. 4 of 2022)
(2) Paragraph (1) shall not apply to a combination of vehicles where any vehicle in that combination is broken down and is being towed by another vehicle in consequence of the breakdown.