(1) The preceding provisions of this Act, other than sections 1, 2 and 3, shall come into force in accordance with provision made by order of the Secretary of State.

(2) An order under subsection (1) -

(a) may make provision generally or only for specified purposes,

(b) may make different provision for different purposes,

(c) may make transitional, consequential or incidental provision, and

(d) shall be made by statutory instrument.

(3) Section 3 shall be treated as having always had effect.

(4) But the section shall have no effect in relation to -

(a) a claim which is settled before 3rd May 2006 (whether or not legal proceedings in relation to the claim have been instituted), or

(b) legal proceedings which are determined before that date.

(5) Where a claim is settled on or after that date and before the date on which this Act is passed, a party to the settlement may apply to a relevant court to have the settlement varied; and -

(a) a court is a relevant court for that purpose if it had, or would have had, jurisdiction to determine the claim by way of legal proceedings,