Elimination of dazzle

(1) No front lamp shall be used on any motor vehicle unless such lamp is so constructed, fitted and maintained that the beam of light emitted therefrom– (a) is permanently deflected downwards to such an extent that it is at all times incapable of dazzling any person standing on the same horizontal plane as the vehicle at a greater distance than 25' from the lamp whose eye level is not less than 3' 6" above that plane; or (b) can be deflected downwards, or both downwards and to the right, at the will of the driver in such manner as to render it incapable Motor Vehicles and Road Traffic [CAP. 230 137 of dazzling any such person in the circumstances aforesaid; or (c) can be extinguished by the operation of a device which at the same time causes a beam of light to be emitted from the lamp which complies with subparagraph (a) of this paragraph; or (d) can be extinguished by the operation of a device which at the same time either deflects the beam of light from another lamp downwards, or both downwards and to the right, in such manner as to render it incapable of dazzling any such person and in the circumstances aforesaid, or brings into or leaves in operation a lamp or lamps (other than the obligatory front lamps) which complies or comply with subparagraph (a) of this paragraph. (2) This regulation shall not apply to any lamp fitted with an electric bulb, if the power of the bulb does not exceed 7 W and the lamp is fitted with frosted glass or other material which has the effect of diffusing the light.