Subject to subsection (2) and without prejudice to subsections (3) and (5) of this section, no premises—
shall be liable to be rated or be included in any valuation list or in any rate.
The foregoing subsection shall not apply—
For the purpose of the making and levying of a rate for any rating area for any rate period, if, in the case of any Gas Board, any gas was in the penultimate year—
by that Board or, in that Board's area, by the Gas Council; or
that Board shall be treated as occupying in that rating area during that rate period a hereditament of a rateable value calculated in accordance with the provisions of Part I of Schedule 6 to this Act.
The hereditament which a Gas Board are to be treated as occupying in a rating area by virtue of subsection (3) of this section shall be taken not to be situated in any part of that area in which there are leviable, as an additional item of the rate, expenses which are not leviable in the area taken as a whole.
If the Minister is of opinion that payments by way of rates should be made by Gas Boards by virtue of this subsection by reference to any premises occupied and used by the Gas Council or a Gas Board for the reception or liquefaction of gas or the evaporation of gas in a liquid state, being in any case gas purchased by the Council or the Board, he may, subject to paragraph 14 of Schedule 6 to this Act, make an order designating the premises for the purposes of this subsection and providing for the determination, by such method as may be specified by the order, of a value for the premises for those purposes ; and where such an order is in force the Minister may direct—
and any direction under this subsection may be revoked or varied by a subsequent direction thereunder.
Subject to paragraph 14 of Schedule 6 to this Act, the Minister may by order provide that, in such of the provisions of this section, the said Schedule 6 or any other enactment relating to rating as may be specified in the order, any reference to the manufacture of gas shall include a reference to such dealings with gas as may be specified by the order.
There shall have effect for the purposes of this section and Part I of Schedule 6 to this Act the supplementary provisions contained in Part II of that Schedule; and for the purposes of this section and the said Schedule 6—
shall not of themselves be taken to constitute the manufacture of gas or the application of a process to gas;