(1) An application under this Act is finally determined when:
(a) a decision that has been made in respect of the application is not, or is no longer, subject to any form of review by application to the ART under Part 5; or
(b) a decision that has been made in respect of the application was subject to some form of review by application to the ART under Part 5 but the period within which such a review could be instituted has ended without a review having been instituted as prescribed.
(2) If a review of a decision that has been made in respect of an application under this Act is instituted by application to the ART under Part 5 as prescribed, the application is finally determined when a decision on review in respect of the application is taken to have been made as provided by the following provisions:
(a) if the decision on review is made under section 105 of the ART Act or paragraph 368C(3)(b) or subsection 368C(5) of this Act--section 368 of this Act;
(b) if the application for review is dismissed under the ART Act and an application for reinstatement cannot be made under section 368C of this Act--section 368B of this Act.
(3) However, subsection (2) does not apply in relation to a decision of the ART to remit a reviewable migration decision or a reviewable protection decision under subsection 349(2).