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

Ballot SC105: Remove High Risk language from TLS BR and EVG
October 28, 2026 by

Ballot Server Certificates

Voting Results Certificate Issuers 27 votes in total:

2026-10-21 Minutes of the S/MIME Certificate Working Group
October 21, 2026 by

Minutes S/MIME

Minutes of SMCWG October 21, 2026 These are the Minutes of the meeting described in the subject of this message. Corrections and clarifications where needed are encouraged by reply.

2026-10-07 Minutes of the S/MIME Certificate Working Group
October 7, 2026 by

Minutes S/MIME

Minutes of SMCWG October 7, 2026 These are the Minutes of the meeting described in the subject of this message. Corrections and clarifications where needed are encouraged by reply.

More posts of the CA/Browser Forum

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