5. (1) In addition to the sum referred to in section 3, the Treasurer may, at any time before 1 January 1990, issue out of the Consolidated Revenue Fund, in respect of the year ending on 30 June 1990, amounts not exceeding such amounts as the Treasurer determines.
(2) The amounts determined by the Treasurer under subsection (1) shall not exceed the amounts estimated to be necessary for the payment of such increases in salaries and payments in the nature of salary, for which provision is made in the Schedule, as have become payable or become payable, or have commenced or commence to be paid, after 29 May 1989, in accordance with any law or any award, order or determination made under a law.
(3) Amounts issued under this section may be applied only for the purpose of expenditure in respect of increases referred to in subsection (2) in salaries and in payments in the nature of salary.
(4) The Consolidated Revenue Fund is appropriated to the extent necessary for the purposes of this section.