13. (1) The Treasurer shall, on the presentation of a Bill for an Appropriation Act other than the first Appropriation Act relating to a financial year, cause to be laid before the Legislative Assembly supplementary budget papers.
(2) The supplementary budget papers shall provide details of the variations proposed to be made to the budget of each department for which an appropriation is provided for by the Bill.
(3) In subsection (2), a reference to the budget of a department is a reference to the budget for the department for the relevant financial year that was laid before the Legislative Assembly pursuant to paragraph 10 (b) or, if that budget has previously been varied as a consequence of the provision of additional appropriations for the department, that budget as so varied.