This Part allows regulations to be made that modify the operation of this Act in relation to specified conveyances, persons or goods. Regulations may also be made in accordance with this Part to modify the operation of this Act in order to implement the Torres Strait Treaty.

If persons, goods or conveyances move between certain parts of Australian territory, as declared by the Director of Biosecurity and the Director of Human Biosecurity, some provisions of this Act about persons, goods and conveyances coming into Australian territory or leaving Australian territory also apply in relation to the movement as if it were an international movement.