(cf s 10A MACA)
(1) A motor vehicle that is--(a) subject to conditional registration under the Road Transport Act 2013 , and(b) designed principally for use otherwise than on a road, and(c) a motor vehicle, or a motor vehicle of a class, prescribed by the regulations for the purposes of this section,is taken, for the purposes of a third-party policy under this Act, to be subject to an unregistered vehicle permit and not to conditional registration.
(2) However, a regulation made for the purposes of this section does not affect a third-party policy under this Act that is in force in respect of any particular vehicle at the time that the regulation is made.