Section 57: substituted, on 25 January 2005, by section 11 of the State Sector Amendment Act (No 2) 2004 (2004 No 114).
Section 57(1)(b): amended, on 18 July 2013, by section 46(1) of the State Sector Amendment Act 2013 (2013 No 49).
Section 57(1)(ba): inserted, on 18 July 2013, by section 46(2) of the State Sector Amendment Act 2013 (2013 No 49).
Section 57(2): amended, on 31 October 2018, by section 14(1) of the State Sector and Crown Entities Reform Act 2018 (2018 No 31).
Section 57(3): replaced, on 31 October 2018, by section 14(2) of the State Sector and Crown Entities Reform Act 2018 (2018 No 31).
Section 57(4): inserted, on 18 July 2013, by section 46(3) of the State Sector Amendment Act 2013 (2013 No 49).
Section 57 compare note: inserted, on 18 July 2013, by section 46(4) of the State Sector Amendment Act 2013 (2013 No 49).