CA/Browser Forum

Leadership

The CA/Browser Forum strives to be a consensus-driven organization. There is no formal organizational structure. There are two recognized roles within the Forum and Working Group level: Chairperson and Vice-Chairperson. The Chairperson is responsible for coordinating meetings, preparing meeting minutes, and other organizational activities. The Vice Chairperson performs the duties of the Chairperson in the absence of the Chairperson, and other tasks delegated to the Chair and Vice-Chair. Further details concerning the responsibilities of the Chairperson and Vice-Chairperson can be found in the Bylaws.

Past Chairs and Vice Chairs

Current CA/Browser Forum Chair and Vice Chair

Term begins Dec 1, 2024 and ends Nov 30, 2026.

Server Certificate Working Group

  • Chairperson: Dimitris Zacharopoulos (HARICA)
  • Vice-Chairperson: Wayne Thayer (Fastly)

Term begins Dec 1, 2024 and ends Nov 30, 2026.

Code-Signing Certificate Working Group

  • Chairperson: Martijn Katerbarg (Sectigo)
  • Vice-Chairperson: Thomas Zermeno (SSL.com)

Term begins Dec 1, 2024 and ends Nov 30, 2026.

SMIME Certificate Working Group

  • Chairperson: Stephen Davidson (Digicert)
  • Vice-Chairperson: Martijn Katerbarg (Sectigo)

Term begins Dec 1, 2024 and ends Nov 30, 2026.

Network Security Working Group

Term begins Dec 1, 2024 and ends Nov 30, 2026.

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).