(1) The Secretary may, on his or her own initiative, review a determination made under section 17 if the Secretary is satisfied that there is enough reason to do so.
(2) The Secretary cannot review a determination:
(a) after an application has been made for external review of the determination under Division 5; or
(b) after a person has accepted the offer in which the determination was included; or
(c) that is made or affirmed in an external review under Division 5.
(3) On review of a determination, the Secretary may:
(a) affirm the determination; or
(b) set aside the determination and substitute a new determination (in accordance with Division 6, if applicable).