PHA's obligation to pay Commonwealth certain costs
(1) PHA must pay to the Commonwealth, in relation to a PHA plant product and PHA year, amounts equalling:
(a) the costs the Commonwealth incurs in collecting or recovering:
(i) the total PHA levy or charge receipts from the plant product for the year; and
(ii) the total PHA penalty receipts from the plant product for the year; and
(b) the costs the Commonwealth incurs in administering section 4 in relation to the plant product and year.
Setting off liabilities under subsection (1) against liabilities under section 4
(2) The Commonwealth may set off an amount that is payable to it under subsection (1) against an amount that is payable to PHA under section 4.