(1)Valuation officers shall give to rating authorities directions for such alterations to be made in valuation lists in force on the first day of April, nineteen hundred and fifty-nine as are necessary in consequence of the provisions of sections nine, ten and thirteen of this Act; and rating authorities shall give effect to such directions.
(2)Any alteration in a valuation list made in pursuance of a direction under this section shall be treated as having been made at the beginning of the year 1959-60; and if the alteration affects the amount of any rate levied in respect of any hereditament in accordance with the list, or any right to levy a rate in respect of the hereditament, any amount overpaid shall be repaid or allowed, or any amount underpaid shall be paid and may be recovered as if it were arrears of the rate.
(3)Valuation officers shall from time to time make such proposals under Part III of the Act of 1948 as may be requisite for altering valuation lists in consequence of any event whereby premises cease to be within the exemption from rating conferred by section eighty-five of the Act of 1948 or by subsection (2) of section six of the Act of 1955:
Provided that this subsection shall not apply where premises cease to be within either of the said exemptions by virtue of the coming into operation of section ten or thirteen of this Act.