CA/Browser Forum
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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
SC100: DNSSEC Clarification and Consolidation - Sep 7, 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
v1.0.16 - Ballot SMC018 - Sep 29, 2026

This ballot implements the requirements of CCADB Policy Section 6.3 relating to cross-certificates into the S/MIME BR effective immediately. The ballot also specifies that effective July 1, 2027 id-kp-emailProtection (mandatory) and the id-kp-clientAuth (optional) are the only extKeyUsage (EKU) permitted in both Subordinate CA Certificates and Subscriber Certificates. Finally, the ballot clarifies in the Definitions that Legacy Generation profiles were deprecated effective July 15, 2025. This ballot is proposed by Stephen Davidson (DigiCert) and endorsed by Dustin Hollinback (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).