Be aware of scammers impersonating as IMDA officers and report any suspicious calls to the police. Please note that IMDA officers will never call you nor request for your personal information. For scam-related advice, please call the Anti-Scam helpline at 1800-722-6688 or go to

Guidelines for Preparing Certification Practice Statement

Internet X.509 Public Key Infrastructure Certificate Policy and Certification Practices Framework 

This document is published pursuant to regulations 21 of the Electronic Transactions (Certification Authority) Regulations 2010. Accredited CAs in Singapore shall use this document (published on 25 April 1998) as a guideline in preparing Certification Practice Statement (CPS).

Kindly note that the above Guidelines for Preparing Certification Practice Statement references two documents from Internet Engineering Task Force

  1. IETF Public Key Infrastructure web page
  2. Latest Version of IETF document