(1)In this Act “caravan” means—
(a)a structure designed or adapted for human habitation which is capable of being moved by being towed or being transported on a motor vehicle or trailer, or
(b)a motor vehicle designed or adapted for human habitation,
but does not include railway rolling stock which is on rails forming part of a railway system or any tent.
(2)A structure composed of two sections—
(a)separately constructed, and
(b)designed to be assembled on a site by means of bolts, clamps or other devices,
is not prevented from being a caravan just because it cannot, when assembled, be lawfully moved on a highway (or, in Scotland or Northern Ireland, road) by being towed or being transported on a motor vehicle or trailer.