9It shall be the duty of each Gas Board, before the first day of August in any year, to transmit to the Assessor a statement setting out particulars of all the matters estimated, calculated and certified for the purpose of computing any adjustment in the basic rateable valuation of that Board which falls to be made in that year under paragraph 4 of this Schedule and of apportioning the Board's rateable valuation for that year among separately rated areas.
10On receipt of a statement under the last foregoing paragraph, the Assessor shall (if necessary) adjust the Gas Board's basic rateable valuation, calculate the rateable value of the lands and heritages which that Board are to be treated as occupying during the year in question in each separately rated area, and shall enter such rateable values in the valuation roll to be made up by him and notify the amount thereof to the rating authority concerned and to the Board before the eighth day of September in that year.
11(1)The provisions of this paragraph shall have effect in the case of a Gas Board where gas is manufactured by the Board in a gasworks which is situated partly in one separately rated area and partly in one or more other separately rated areas.
(2)For the purposes of subsection (1) of section twenty-four of this Act, the Gas Board shall be treated as manufacturing gas in each of the areas in which a part of the gasworks is situated, notwithstanding that no gas is actually manufactured in one or more of those areas.
(3)For the purposes of paragraph 5 of this Schedule, the gas manufactured in the gasworks in any year shall be treated as apportioned between all the separately rated areas in which parts of the gasworks are situated in such proportions as may be agreed between the rating authorities of those areas and the Gas Board:
Provided that if any apportionment required by this sub-paragraph for the purpose of apportioning the Board's rateable valuation for any year has not been agreed between the rating authorities and the Board before the first day of April falling within the immediately preceding year, the apportionment required by this sub-paragraph shall be made by the Secretary of State and notified by him to the rating authorities and to the Board as soon as may be after the said first day of April.
(4)In this paragraph " gasworks " means any group of premises within one curtilage which is occupied by the Gas Board for the purposes of the manufacture of gas:
Provided that a group of premises shall not be treated as being otherwise than within one curtilage by reason only that it is traversed by a public right of way.
12The powers conferred on the Minister of Fuel and Power by subsection (6) of section six of the Gas Act, 1948, and by subsection (3) of section twenty-four of that Act (which authorise that Minister, in an order varying the area of a Gas Board, or transferring property between Gas Boards, to provide for certain matters arising out of the variation or transfer) shall include power, by an order made thereunder, to modify the application of Part I of this Schedule, and the preceding provisions of this Part of this Schedule, in the case of any Gas Board affected by the order.