This Order brings into operation section 4(3) of the Hovercraft Act 1968, which provides that a hovercraft shall not be treated as a ship, aircraft or motor vehicle for the purposes of any enactment passed before that Act, or of any instrument having effect by virtue of any such enactment. Section 4(3) comes into operation on the same day as the Hovercraft (Application of Enactments) Order 1972 (S.I. 1972/971).