Decimal Currency Act 1965

Notwithstanding any other law or rule of law to the contrary, the Governor may, by order, amend any statutory instrument made, issued, or granted before the appointed day – by substituting references to amounts of money in terms of the new currency for references therein to amounts of money in terms of the old currency; and by making provision for any matter that is ancillary to or consequent upon the making of such a substitution.

An amendment effected by an order made under this section may be expressed to commence on such date (whether before or after the date of the making of the order but not earlier than the appointed day) as may be specified in that behalf in the order, and if no date is so specified in an order, the order shall commence, or shall be deemed to have commenced, on the appointed day.

An order made under this section – may be made without regard to – any method or procedure required by law for the amendment of the statutory instruments, or of any class or kind of the statutory instruments, to which it relates; or the fact that any statutory instrument, or kind or class of statutory instruments, to which it relates is or may be incapable of amendment apart from this section; and has effect according to its tenor on and from the date on which it commences or is deemed to have commenced and is not subject to appeal, disallowance, or any similar procedure.