Section 178(1): substituted, on 1 April 2011, by section 34(1) of the Employment Relations Amendment Act 2010 (2010 No 125).
Section 178(3): amended, on 1 April 2011, by section 34(2) of the Employment Relations Amendment Act 2010 (2010 No 125).
Section 178(6): added, on 1 December 2004, by section 58 of the Employment Relations Amendment Act (No 2) 2004 (2004 No 86).