S.L. 65.11 Art. 102Motor cycle headlamp.

In the case of motor cycles one lamp fitted with anti-dazzle material and capable of being dipped or dimmed by some automatic mechanism shall be carried attached to the front besides the rear red light required by all other vehicles. When the motor cycle is driven with a side-car attachment an additional lamp shall be carried on the outside end of the side-car. This regulation shall also apply to invalid carriages or other mechanically propelled vehicles having only three wheels.