Section 31 heading: amended, on 7 July 1993, by section 22 of the Resource Management Amendment Act 1993 (1993 No 65).
Section 31(1)(aa): inserted, on 19 April 2017, by section 13(1) of the Resource Legislation Amendment Act 2017 (2017 No 15).
Section 31(1)(b): replaced, on 1 August 2003, by section 10(1) of the Resource Management Amendment Act 2003 (2003 No 23).
Section 31(1)(b)(ii): repealed, on 19 April 2017, by section 13(2) of the Resource Legislation Amendment Act 2017 (2017 No 15).
Section 31(1)(b)(iia): inserted, on 10 August 2005, by section 12 of the Resource Management Amendment Act 2005 (2005 No 87).
Section 31(1)(c): repealed, on 1 August 2003, by section 10(1) of the Resource Management Amendment Act 2003 (2003 No 23).
Section 31(2): inserted, on 1 August 2003, by section 10(2) of the Resource Management Amendment Act 2003 (2003 No 23).