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WebTrust Releases New Audit Criteria for Extended Validation and Baseline Requirements

On April 3, 2014, the WebTrust® Task Force of the American Institute of CPAs (AICPA) and Chartered Professional Accountants Canada (CPA Canada) released three new audit criteria documents to the CA/Browser Forum and others for review and/or implementation. These documents are part of the WebTrust Program for Certification Authorities and are based on the CA/Browser Forum Guidelines.

The Trust Services Principles and Criteria for Certification Authorities – Extended Validation SSL – Version 1.4.5 is based on the Forum’s Guidelines for the Issuance and Management of Extended Validation SSL Certificates – Version 1.4.5 and is effective immediately (3 April 2014).

Trust Services Principles and Criteria for Certification Authorities – SSL Baseline with Network Security – Version 2.0 is based on the Forum’s Baseline Requirements for the Issuance and Management of Publicly-Trusted Certificates – Version 1.1.6 and its Network and Certificate Systems Security Requirements – Version 1.0. The exposure draft released today has a proposed effective date of 1 July 2014 (applicable to audit periods starting on or after 1 July 2014).

The Trust Services Principles and Criteria for Certification Authorities – Extended Validation Code Signing is based on the Forum’s Guidelines for the Issuance and Management of Extended Validation Code Signing Certificates – Version 1.1. The exposure draft released today has a proposed effective date of 1 July 2014 (applicable to audit periods starting on or after 1 July 2014).

All three of these documents are available in PDF, DOC and DOCX format at .

Latest releases
Server Certificate Requirements
SC-089: Mass Revocation Planning - Aug 26, 2025

Code Signing Requirements
v3.8 - Aug 5, 2024

What’s Changed CSC-25: Import EV Guidelines to CS Baseline Requirements by @dzacharo in https://github.com/cabforum/code-signing/pull/38 Full Changelog: https://github.com/cabforum/code-signing/compare/v3.7...v3.8

S/MIME Requirements
v1.0.12 - Ballot SMC014 - Oct 13, 2025

This ballot introduces requirements that a Certificate Issuer MUST deploy DNSSEC validation back to the IANA DNSSEC root trust anchor on all DNS queries associated with CAA record lookups performed by the Primary Network Perspective, effective March 15, 2026. The ballot is intended to maintain consistency in the S/MIME Baseline Requirements with the requirements of Ballot SC-085 which implemented identical requirements in the TLS Baseline Requirements. Note: SC-085 also introduced requirements in TLS Baseline Requirements for the use of DNSSEC in domain control validation. These requirements are automatically adopted in the S/MIME BR by the email domain control methods that include a normative reference to section 3.2.2.4 of the TLS Baseline Requirements. The draft also includes minor corrections to web links in the text. This ballot is proposed by Stephen Davidson (DigiCert) and endorsed by Client Wilson (Apple) and Ashish Dhiman (GlobalSign).

Network and Certificate System Security Requirements
Version 2.0.5 (Ballot NS-008) - Jul 9, 2025

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The Certification Authority Browser Forum (CA/Browser Forum) is a voluntary gathering of Certificate Issuers and suppliers of Internet browser software and other applications that use certificates (Certificate Consumers).