This section applies if the Secretary of State gives a direction under section 52ZR above to a major precepting authority other than the Greater London Authority.
The direction must state the amount that is to be the amount of the major precepting authority's council tax requirement for the financial year.
If the direction is given before the major precepting authority has carried out its council tax calculations for the financial year, that amount is to be treated for all purposes as the amount calculated by the major precepting authority under section 42A above.
If the direction is given after the major precepting authority has carried out its council tax calculations for the financial year (whether or not it has issued a precept for the year)—
For the purposes of those and any subsequent substitute calculations and the application of Chapters 3 and 4 above to them—