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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.

Leadership
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).