57Power to extend or modify exemptions
(1)The appropriate Ministers may by order provide that section 52 or section 53 of this Act, or both of those sections, shall have effect subject to such exemptions (other than those for the time being having effect by virtue of sections 55 and 56 of this Act) as may be specified in the order.
(2)Any exemption conferred by an order under the preceding subsection may be conferred subject to such conditions or limitations as may be specified in the order.
(3)The appropriate Ministers may by order provide that subsection (1)(b) or subsection (2) of section 55 of this Act shall cease to have effect, or shall have effect subject to such exceptions or modifications as may be specified in the order.
(4)No order shall be made under subsection (3) of this section unless a draft of the order has been laid before Parliament and approved by a resolution of each House of Parliament.