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About the CA/Browser Forum

The CA/Browser Forum is governed by Bylaws, which were first adopted in 2012. The Bylaws set forth the qualifications for Membership in the Forum, and the types of participation that are allowed for non-voting members, interested parties, and others.  The Forum is an unincorporated association of separate organizations.

All active participants in CA/Browser Forum activities must agree to the Forum’s Intellectual Property Rights Policy, also adopted in 2012.

The Forum elects Officers — a Chair, who serves a two-year term, and a Vice Chair. The Chair and Vice Chair manage the Meetings of the Forum and act as the Forum’s official representatives.

The Forum communicates through a variety of means, such as email lists, telephone calls, face-to-face meetings, and this web site. As stated generally in section 1 of the Forum’s Bylaws, the CA/Browser Forum advances industry best practices to improve the ways that certificates are used to the benefit of Internet users and the security of their communications.

Latest releases
Server Certificate Requirements
SC095v3: Clean-up 2025 - Apr 2, 2026

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
v1.0.13 - Ballot SMC015v2 - Mar 28, 2026

This ballot introduces requirements that a CA or RA must follow to rely upon a Mobile Drivers License (mDL) to provide evidence for the authentication of individual identity. It allows the use of mDL that conform to ISO/IEC 18013-5 and which may be verified by the CA or RA in conformance with ISO/IEC 18013-7. The CA or RA shall only accept mDL from an Issuing Authority that is legally authorized by the relevant government or jurisdiction to issue driving licenses. The draft also aligns the subsections of 3.2.4.2 (Validation of individual identity) to correspond more closely with those in 3.2.4.1 (Attribute collection of individual identity). It also includes minor editorial corrections. SMC015v2 was updated to remove an additional reference to the superceded ETSI EN 319 403. This ballot is proposed by Stephen Davidson (DigiCert) and endorsed by Ben Wilson (Mozilla) and Scott Rea (eMudhra).

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).