(b) amend or revoke any code of practice or standard of performance issued or approved under paragraph (a). (2) If any provision in any code of practice or standard of performance is inconsistent with this Act, such provision, to the extent of the inconsistency, does not have effect. (3) Where a code of practice or standard of performance is issued, approved, amended or revoked by the Commissioner under subsection (1), the Commissioner must — (a) publish a notice of the issue, approval, amendment or revocation (as the case may be) in such manner as will secure adequate publicity for such issue, approval, amendment or revocation; (b) specify in the notice the date of the issue, approval, amendment or revocation (as the case may be); and (c) ensure that, so long as the code of practice or standard of performance remains in force, copies of that code or standard, and of all amendments to that code or standard, are available free of charge to the owner of a critical information infrastructure to which that code or standard applies. (4) None of the following has any effect until the notice relating to it is published in accordance with subsection (3): (a) a code of practice or standard of performance; (b) an amendment to a code of practice or standard of performance; (c) a revocation of a code of practice or standard of performance. (5) Any code of practice or standard of performance has no legislative effect. (6) Subject to subsections (4) and (7), every owner of a critical information infrastructure must comply with the codes of practice and standards of performance that apply to the critical information infrastructure. (7) The Commissioner may, either generally or for such time as the Commissioner may specify, waive the application to the owner of a critical information infrastructure of any code of practice or standard of performance, or any part of it. Power of Commissioner to issue written directions 12.—(1) The Commissioner may, if the Commissioner thinks — (a) it is necessary or expedient for ensuring the cybersecurity of a critical information infrastructure or a class of critical information infrastructure; Singapore Statutes Online Published in Acts Supplement on 12 Mar 2018 PDF created date on: 30 Aug 2022