(1) A certification authority that has been carrying on or operating as a certification authority before the commencement of this Act shall, not later than three months from such commencement, obtain a licence under this Act.
(2) Where a certification authority referred to in subsection (1) fails to obtain a licence after the period prescribed in subsection (1), it shall be deemed to be an unlicensed certification authority and the provisions of this Act shall apply to it and the certificates issued by it accordingly.
(3) Where a certification authority referred to in subsection (1) has obtained a licence in accordance with this Act within the period prescribed in subsection (1), all certificates issued by such certification authority before the commencement of this Act, to the extent that they are not inconsistent with this Act, shall be deemed to have been issued under this Act and shall have effect accordingly.