Construction of statutory power and instruments, etc

(1) Where an Act confers power to make, grant or issue any statutory instrument, expressions used in that instrument shall, unless the contrary intention appears, have the same respective meanings as in the Act conferring the power. (2) A power to make, grant or issue any statutory instrument shall include the power to prescribe forms for carrying into effect (a) the statute conferring the power; and (b) the statutory instrument itself, and also to amend or annul any such forms and to substitute other forms for those in force under any provision whatever relating to the subject matter of the statutory instrument. 23