61Duty of designated precepting authority
(1)Where a relevant precepting authority has received a notice under section 57(7), 58(2) or 59(5) above, it shall make substitute calculations in relation to the year in accordance with sections 43 to 48 above.
(2)The substitute calculations shall be made so as to secure—
(a)that the amount calculated by the authority as its budget requirement for the year does not exceed that stated in the notice; and
(b)subject to subsection (3) below, that any amount calculated under section 44(1) or 45(2) or (3) above as the basic amount of council tax applicable to any dwelling does not exceed that so calculated in the previous calculations.
(3)Subsection (2)(b) above does not apply in any case where the amount stated in the notice exceeds that already calculated by the authority as its budget requirement for the year.
(4)In making substitute calculations under section 44(1) or 45(3) above, the authority must use any amount determined in the previous calculations for item P or T in section 44(1) above or item TP in section 45(3) above.
(5)For the purposes of subsection (4) above, the authority may treat any amount determined in the previous calculations for item P in section 44(1) above as increased by the amount of any sum which—
(a)it estimates will be payable to it for the year in respect of additional grant; and
(b)was not taken into account by it in making those calculations.