10. In section 80 (reconsideration of rent after registration) at the end add—
“(3) If the dwelling forms part of a hereditament in respect of which the lessor, or any person having any title superior to that of the lessor, is liable under Part I of the Local Government Finance Act 1992 to pay council tax or was so liable on the date on which the rent was last considered by the tribunal, then, in determining for the purposes of subsection (2) above whether since that date there has been such a change falling within paragraph (d) of that subsection as to make the registered rent no longer a reasonable rent, any change in the amount of council tax payable in respect of the hereditament shall be disregarded unless it is attributable to—
(a)the fact that the hereditament has become, or has ceased to be, an exempt dwelling,
(b)an alteration in accordance with regulations under section 24 of the Local Government Finance Act 1992 of the valuation band shown in a valuation list as applicable to the hereditament, or
(c)the compilation of a new valuation list in consequence of an order of the Secretary of State under section 5(4)(b) of that Act.
(4) In subsection (3) above “hereditament” means a dwelling within the meaning of Part I of the Local Government Finance Act 1992 and, subject to that, expressions used in subsection (3) and in Part I of that Act (other than “dwelling”) have the same meaning in that subsection as in that Part.”.