Section 19Z: inserted, on 25 December 2002, by section 6 of the Local Electoral Amendment Act 2002 (2002 No 85).
Section 19Z(4): amended, on 28 June 2006, by section 4 of the Local Electoral Amendment Act 2006 (2006 No 25).
Section 19Z(5)(b): amended, on 5 December 2012, by section 43 of the Local Government Act 2002 Amendment Act 2012 (2012 No 93).