4. In paragraph 6 of Schedule 1 to the principal Act—
(a)in sub-paragraph (1)(b), for the words from “the amounts ascertained” to the end of that sub-paragraph, there shall be substituted the words “the proportion of the expenses of the drainage board to be raised from the proceeds of special levies in the first financial year in that period, determined in accordance with section 37 of this Act.”;
(b)in sub-paragraph (2)(b), for the words from “the aggregate amount” to the end of that sub-paragraph, there shall be substituted the words “the proportion of the expenses of the board that is to be raised from the proceeds of special levies.”;
(c)in sub-paragraph (4), for the words from “which identifies” to the end of that sub-paragraph, there shall be substituted the words “the fraction of the expenses of the internal drainage board that is to be raised from the proceeds of special levies in the first financial year of the relevant period referred to in sub-paragraph (1)(a) above, which is to be raised by a special levy issued to that authority.”.