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F2The county court shall have jurisdiction, either in the course of any proceedings relating to a dwelling-house or on an application made for the purpose by the landlord or the tenant, to determine any question as to the rent limit under this Part of this Act, or as to any matter which is or may become material for determining any such question.

In ascertaining for the purposes of this Part of this Act whether there is any difference with respect to rents or rates between one rental period and another (whether of the same tenancy or not) or the amount of any such difference, any necessary adjustments shall be made to take account of periods of different lengths.

For the purposes of such an adjustment a period of one month shall be treated as equivalent to one-twelfth of a year and a period of a week as equivalent to one-fifty-second of a year.