Section 4(1): amended, on 17 April 1978, by section 6(2) of the Industrial Relations Amendment Act 1977 (1977 No 108).
Section 4(1): amended, on 7 December 1945, by section 75(5)(a) of the Statutes Amendment Act 1945 (1945 No 40).
Section 4(4): amended, on 17 April 1978, by section 6(2) of the Industrial Relations Amendment Act 1977 (1977 No 108).
Section 4(4): amended, on 7 December 1945, by section 75(5)(b) of the Statutes Amendment Act 1945 (1945 No 40).