The Expert will be specific knowledgeable people at the Department of Transport, Arrive Alive Communications, the Road Traffic Management Corporation or others who might have the expertise to answer the question.
In terms of regulation 157 (2), yes it is law for all motor cycles manufactured on or after 31 December 1960. Vehicles manufactured before this date may operate with the head lights off, provided that they are only operated during daylight. I attach an extract from the regulation:
(2) No person shall operate on a public road a motor cycle, a motor cycle with a side car, a motor tricycle or motor quadrucycle, unless the headlamp of such vehicle is lighted at all times: Provided that the provisions of this subregulation shall not apply to a motor cycle, motor cycle with side car, motor tricycle or motor quadrucycle manufactured before 31 December 1960 which is used only during the period from sunrise to sunset.
