CA/Browser Forum

Welcome to the CA/Browser Forum

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).

More information for about the forum and information for Site Owners, Developers, Auditors and Assessors, and Potential Members can be found in the About section of this website.

Recent posts

2025-07-02 Minutes of the S/MIME Certificate Working Group
July 2, 2025 by Minutes of SMCWG July 2, 2025 These are the Minutes of the meeting described in the subject of this message. Corrections and clarifications where needed are encouraged by reply.
Ballot SMC013: Enable PQC Algorithms for S/MIME
July 2, 2025 by Stephen DavidsoonBallot SMC013: Enable PQC Algorithms for S/MIME Summary: This ballot introduces specifications for the use of two post-quantum cryptography (PQC) algorithms, as standardized by the U.S. National Institute of Standards and Technology (NIST), in the S/MIME BR:
More posts of the CA/Browser Forum
Latest releases
Server Certificate Requirements
SC-081v3: Introduce Schedule of Reducing Validity and Data Reuse Periods - May 21, 2025

BR v2.1.5

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
v1.0.10 - Ballot SMC012 - Jul 2, 2025

Introduces a new method for validation of mailbox control, using ACME for S/MIME as defined in RFC 8823: Extensions to Automatic Certificate Management Environment for End-User S/MIME Certificates.

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).