29.—(1) The Department may make regulations prescribing (by reference to shape, construction or any other quality) types of appliance of any description to which this Article applies as authorised for use by persons driving or riding (otherwise than in sidecars) on motor cycles of any class specified in the regulations.
(2) Regulations under this Article may impose restrictions or requirements with respect to the circumstances in which appliances of any type prescribed by the regulations may be used.
(3) If a person driving or riding on a motor cycle on a road uses an appliance of any description for which a type is prescribed under this Article and that appliance—
(a)is not of a type so prescribed, or
(b)is otherwise used in contravention of regulations under this Article,
he is guilty of an offence.
(4) If a person sells, or offers or exposes for sale, an appliance of any such description as authorised for use by persons on or in motor cycles, or motor cycles of any class, and that appliance is not of a type prescribed under this Article as authorised for such use, he is, subject to paragraph (5), guilty of an offence.
(5) A person shall not be convicted of an offence under this Article in respect of the sale, or offering or exposing for sale, of an appliance if he proves that it was sold or, as the case may be, offered or exposed for sale for export from Northern Ireland.
(6) The provisions of Schedule 1 shall have effect in relation to contravention of paragraph (4).
(7) This Article applies to appliances of any description designed or adapted for use—
(a)with any headgear, or
(b)by being attached to or placed upon the head,
(as, for example, eye protectors or earphones).
(8) References in this Article to selling or sale include references to letting on hire and references to offering or exposing for sale shall be construed accordingly.