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Information for Interested Parties

The role of the Interested Party in CA/B Forum activities is described in Section 3.2 of the Bylaws. An Interested Party may post to a Forum Working Group’s public mailing list and participate in teleconferences to which they are invited by the Working Group Chair related to their area of expertise or to the subject of their working group participation.

Individual persons and entities (e.g. companies) may become Interested Parties.

In order to participate as an Interested Party in the Forum / Working Group, you need to:

  1. Review the Intellectual Property Rights policy and complete the IPR agreement found there. If applying as an entity, the IPR Policy Agreement MUST be signed by a representative that is authorized to bind the entity to the agreement.

  2. Send an email to with your name, organization (if applicable), contact details and the signed IPR agreement with the subject: Participation as an Interested Party in the [Working Group Name] Working Group.

Current Interested Parties at the Forum level are:

AGMS Information Technology Andrea Fossati Andrew Ayer Arno Fiedler Ben Wilson Certizen Limited CloudFlare Deloitte LLP EFF (Electronic Frontier Foundation) Envers ETSI Hydraulic Software AG ICANN India PKI Forum Insta Advance OY Intel K Software LLC KPMG AG KPMG Korea Keyfactor Leader Telecom BV Logius PKIoverheid MSC Trustgate Sdn Bhd Nathalie Weiler Peercraft PrimeKey PSW Group Russ Housley Schellman and Company LLC TeleTrusT Trustcor Systems TurkTrust Vigil Security Yahoo Inc

Latest releases
Code Signing Requirements
v3.7 - Mar 4, 2024

S/MIME Requirements
v1.0.5 - Ballot SMC07 - Jul 15, 2024

Ballot SMC07: Align Logging Requirement and Key Escrow clarification

Network and Certificate System Security Requirements
v2.0 - Ballot NS-003 - Jun 26, 2024

Ballot NS-003: Restructure the NCSSRs in

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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).