(1)The Secretary of State may at any time by order made by statutory instrument provide that, on such day or in relation to such periods as may be appointed by the order, the provisions made by sections 126 and 127—
(a)shall cease to have effect; or
(b)shall cease to apply for such purposes as may be specified in the order.
(2)An order under this section—
(a)may appoint different days or periods for different provisions or purposes or for different authorities or descriptions of authority, and
(b)may contain such incidental, supplementary or transitional provisions as appear to the Secretary of State to be necessary or expedient.