6.—(1) The Minister may make regulations prescribing the general rate for the purposes of a levy on butter under this Act, but the general rate so prescribed by any such regulations shall not exceed one half of the rate of the butter duty.
(2) In this Act the expression “the general rate” means the rate for the time being in force by virtue of regulations under this section or if no such rate is for the time being in force, two pence per pound.
