18(1)The expenses of the Council (which may include reasonable provision for reserves) for the year then current shall, unless otherwise resolved by the Council, be estimated and determined upon at the first meeting of the Council in any year and shall be defrayed out of contributions paid in accordance with this paragraph by each of the assay offices.U.K.
(2)The contribution so to be paid by any assay office shall be ascertained by applying to the amount of the said expenses of the Council that percentage (which for purposes of practical calculation may be adjusted by the Council by not more than one half of one per cent. or by any greater percentage with the agreement of that assay office) of the aggregate of the gross revenues of all the assay offices from charges for assaying and hallmarking precious metals under this Act (being revenue ascertained in manner for the time being determined by the Council), which is represented by the like gross revenue of that assay office alone and so ascertained.
(3)Unless otherwise determined by the Council, every contribution payable under this paragraph shall be paid within three months after any such meeting of the Council as is referred to in sub-paragraph (1) of this paragraph.