Section 40(1): amended, on 1 July 1996, by section 5 of the Survey Amendment Act 1996 (1996 No 55).
Section 40(1)(b): amended, on 31 March 1987, by section 2(7) of the Public Works Amendment Act (No 2) 1987 (1987 No 67).
Section 40(2): substituted, on 1 November 1982, by section 2 of the Public Works Amendment Act 1982 (1982 No 182).
Section 40(2): amended, on 1 July 1996, by section 5 of the Survey Amendment Act 1996 (1996 No 55).
Section 40(2A): inserted, on 1 November 1982, by section 2 of the Public Works Amendment Act 1982 (1982 No 182).
Section 40(2A): amended, on 1 July 1996, by section 5 of the Survey Amendment Act 1996 (1996 No 55).
Section 40(3): substituted, on 31 March 1987, by section 2(7) of the Public Works Amendment Act (No 2) 1987 (1987 No 67).
Section 40(4): amended, on 1 July 1996, by section 5 of the Survey Amendment Act 1996 (1996 No 55).