(1)It shall be the duty of any person to whom the Secretary of State gives directions under this Act to give effect to those directions.
(2)Any direction given by the Secretary of State under any provision of this Act (including a direction specifying a period or date for any purposes of Part IV of this Act) may be varied or revoked by a subsequent direction given under that provision.
(3)Any direction given by the Secretary of State under this Act shall be in writing.