The Act Commentary on Sections Section 75: Amendments, repeals and transitional provisions
256.Subsections (4) and (5) of this section are standard provisions in many Acts, giving the Minister for the Cabinet Office or Secretary of State an order-making power which allows him to make supplementary etc. provision for the purposes of this Act or for giving full effect to it. An order under subsection (4) may modify any “enactment”, which includes both primary and secondary legislation.