(1) The Minister may, by legislative instrument, determine:
(a) an interest rate for the purpose of subsection (2); or
(b) a formula or other method for working out an interest rate for the purpose of subsection (2).
(2) In this Act:
"median interest rate" is the lower of the following:
(a) the interest rate determined under paragraph (1)(a), or worked out in accordance with a determination under paragraph (1)(b);
(b) an interest rate prescribed by the regulations.