Section 2A: inserted, on 7 May 1999, by section 3 of the Hazardous Substances and New Organisms Amendment Act 1999 (1999 No 35).
Section 2A(1)(ca): inserted, on 30 October 2003, by section 5(1) of the Hazardous Substances and New Organisms Amendment Act 2003 (2003 No 54).
Section 2A(1)(cb): inserted, on 30 October 2003, by section 5(1) of the Hazardous Substances and New Organisms Amendment Act 2003 (2003 No 54).
Section 2A(2): substituted, on 30 October 2003, by section 5(2) of the Hazardous Substances and New Organisms Amendment Act 2003 (2003 No 54).
Section 2A(2)(a)(i): amended, on 20 April 2010, by section 5 of the Hazardous Substances and New Organisms Amendment Act 2010 (2010 No 18).
Section 2A(2A): inserted, on 30 October 2003, by section 5(2) of the Hazardous Substances and New Organisms Amendment Act 2003 (2003 No 54).
Section 2A(2A)(b): amended, on 9 April 2008, by section 5(1) of the Hazardous Substances and New Organisms Amendment Act 2008 (2008 No 22).
Section 2A(2A)(c): added, on 9 April 2008, by section 5(2) of the Hazardous Substances and New Organisms Amendment Act 2008 (2008 No 22).