The coastal waters of a State or the Northern Territory are:
(a) the part or parts of the territorial sea that are:
(i) within 3 nautical miles of the baseline of the territorial sea; and
(ii) adjacent to the State or the Northern Territory; and
(b) the waters of the sea that are:
(i) on the landward side of the baseline of the territorial sea; and
(ii) adjacent to the State or the Northern Territory and not within the limits of the State or the Northern Territory; and
(c) the seabed and subsoil beneath any such sea.