(1) The sum of:
(a) the amounts paid to the Authority under paragraph 32(ai) of this Act; and
(b) the amounts paid to the Grape and Wine Research and Development Corporation before the commencement of this section under paragraph 30(1)(b) of the Primary Industries Research and Development Act 1989 ;
must not exceed the total of:
(c) the sum of the amounts paid to the Authority under paragraphs 32(ae) and (ag) of this Act, less the sum of:
(i) any refunds required to be paid by the Commonwealth in respect of amounts that have been paid or overpaid to the Commonwealth by way of the research component of wine grapes levy; and
(ii) any refunds required to be paid by the Commonwealth in respect of amounts that have been paid or overpaid to the Commonwealth by way of grapes research levy; and
(d) the sum of the amounts paid to the Grape and Wine Research and Development Corporation before the commencement of this section under subparagraphs 30(1)(a)(i) and (ii) of the Primary Industries Research and Development Act 1989 , less the sum of any refunds in relation to research components of levies attached to the Grape and Wine Research and Development Corporation; and
(e) amounts prescribed by the regulations.
(1A) Subsection (1) does not apply if the regulations so provide.
(2) An expression used in paragraph (1)(d) of this section has the same meaning as it had in the Primary Industries Research and Development Act 1989 as in force immediately before the commencement of this section.