26.—(1) The Minister may from time to time by order make regulations prescribing the rates of levy under this Part of this Act on imported butter, and may at any time by order revoke or amend any such order.
(2) The Minister may by regulations made under this section prescribe different rates of levy for different classes (defined in any manner which the Minister shall think proper) of butter and prescribe the date on which any particular rate of levy shall come into force.
(3) In this Part of this Act, the expression “appropriate rate” means the rate of levy for the time being in force under this section in respect of the class of butter in relation to which the said expression is used.
