(1)  Subject to this section, the Treasurer may issue and apply out of the Public Account the amounts that are required to provide –

(a) advances to Agencies, the accounts of which are kept in the relevant Agency; and

(b) special advances to Agencies for specific purposes, pending adjustment when actual expenditure on those purposes is made.

(2)  An advance to an Agency must not be made under subsection (1)(a) unless –

(a) the expenditure is in accordance with an Appropriation Act; or

(b) the expenditure is authorised under section 30 .

(3)  Unless otherwise determined by the Treasurer and approved by the Auditor-General, all amounts that are issued and applied under subsection (1) are to be paid back by the relevant Agency into the Public Account.