(1) For the purposes of this Act, there is a Designated Authority for each offshore area.
State
(2) The Designated Authority for the offshore area of a State is the responsible State Minister.
(3) The Designated Authority for the offshore area of the Northern Territory is the responsible Northern Territory Minister.
External Territories
(4) The responsible Commonwealth Minister is the Designated Authority for the offshore area of each of the following external Territories:
(a) Norfolk Island;
(b) the Territory of Christmas Island;
(c) the Territory of Cocos (Keeling) Islands;
(d) the Territory of Ashmore and Cartier Islands;
(e) the Territory of Heard Island and McDonald Islands.