(1) The Secretary may by notice in writing to the vehicle owner revoke a current exemption granted under regulation 3C if—
(a) The vehicle to which the exemption relates is used on a road at any time while the exemption has effect (except in the circumstances referred to in regulation 3D(2)); or
(b) The owner of the vehicle requests in writing that the exemption be revoked.
(2) A revocation takes effect from the date specified in the notice of revocation, which date may not be earlier than—
(a) The date the vehicle was used on the road, in the case of a revocation under subclause (1)(a); or
(b) The date the owner made the request, in the case of a revocation under subclause (1)(b).
Regulations 3B to 3F were inserted, as from 1 September 1997, by regulation 2 Transport (Vehicle Registration and Licensing) Amendment Regulations 1997 (SR 1997/141).