4(1)The Secretary of State may make regulations containing rules for the calculation of an amount for a chargeable financial year in relation to each charging authority (to be called its non-domestic rating contribution for the year).
(2)The rules shall be so framed that the amount calculated under them in relation to an authority is broadly the same as the total which, if the authority acted diligently, would be payable to it in respect of the year under sections 43 and 45 above.
(3)Sub-paragraph (2) above shall not apply in the case of a special authority, but the rules shall be so framed that the amount calculated under them in relation to the authority is broadly the same as the total which would be payable to it in respect of the year under sections 43 and 45 above if—
(a)the authority’s non-domestic rating multiplier for the year was equal to the required minimum for the year, and
(b)the authority acted diligently.
(4)For the purposes of sub-paragraph (3) above the required minimum for the year is the required minimum for the year as found for the purposes of paragraph 9(3) of Schedule 7 above.
(5)The Secretary of State may incorporate in the rules provision for deductions (of such extent as he thinks fit) as regards—
(a)the operation of sections 47 and 49 above;
(b)costs of collection and recovery;
(c)such other matters (if any) as he thinks fit;
and sub-paragraphs (2) and (3) above shall have effect subject to this.
(6)Regulations under this paragraph in their application to a particular financial year (including regulations amending or revoking others) shall not be effective unless they come into force before 1 January in the preceding financial year.