39Expiry of Part II
This Part of this Act shall cease to have effect—
(a)if no order is made under section 36(1) of this Act before the end of the period of eight years beginning with the date on which this Act is passed, at the end of that period;
(b)if an order made under section 36(1) specifying a day for the application of sections 37 and 38 of this Act ceases to have effect by virtue of subsection (5) of that section, or is revoked before the end of the period of eight years mentioned in that subsection, on the date when that order ceases to have effect or (as the case may be) is revoked.