(1) Unless the Secretary makes a determination under subsection (2), a person's AVTOP is to be paid:
(a) in accordance with section 47; and
(b) on the date that is determined by the Secretary to be the earliest date on which it is reasonably practicable for the payment to be made to the person.
(2) If the Secretary considers that it is appropriate for a person's AVTOP to be paid by instalments, the Secretary may determine that the person's AVTOP is to be so paid.