(1) If an amount appropriated to an Agency in a financial year remains unexpended, the Treasurer may determine that an amount of that unexpended appropriation which, in total, does not exceed 5% of that Agency's appropriation is to be issued and applied from the Public Account in the following financial year.(2) The determination mentioned in subsection (1) must specify (a) the Agency and item in the Schedule to an Appropriation Act to which the amount is to be issued and applied; and(b) the total amount authorised to be issued and applied; and(c) the purpose for which the amount is to be issued and applied.(3) The Public Account is, for the following financial year, appropriated to the extent necessary to provide for the amount mentioned in subsection (2)(b) .