(1) This Part, the applied provisions of the Convention and regulations made for the purposes of section 12 do not apply in relation to a ship that is not a regulated Australian vessel, when the ship is in a particular area, so far as a law of a State or the Northern Territory gives effect to the applied provisions of the Convention in relation to that ship when it is in that area.
(2) However, subsection (1) does not apply in relation to an incident that:
(a) is an incident Article IV of the Convention applies to; and
(b) involves both:
(i) one or more ships that are regulated Australian vessels; and
(ii) one or more ships that are not regulated Australian vessels.