Section 22AB: inserted, on 15 November 2000, by section 86 of the Referenda (Postal Voting) Act 2000 (2000 No 48).
Section 22AB(8): amended, on 28 February 2002, by section 101(2) of the Electoral Amendment Act 2002 (2002 No 1).
Section 22AB(9): inserted, on 28 October 2021, by section 3 of the Secondary Legislation Act 2021 (2021 No 7).