A power to make subordinate legislation conferred by any of the following provisions of this Act may be exercised by modifying any enactment comprised in or made under this Act (except Schedules 4 and 5): sections 89, 104, 107, 108 and 129(1).

The reference in subsection (1) to a power to make subordinate legislation includes a power as extended by section 113.

A power to make subordinate legislation conferred by any of the following provisions of this Act may be exercised so as to make provision having retrospective effect: sections 30, 58(4), 104 and 107.