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NOTICE OF REVIEW PERIOD – BALLOT SC6

This Review Notice is sent pursuant to Section 4.1 of the CA/Browser Forum’s Intellectual Property Rights Policy (v1.3). This Review Period is for Final Maintenance Guidelines (30 day Review Period). A complete draft of the Draft Guideline that is the subject of this Review Notice is attached.

Date Review Notice Sent: Sept. 14, 2018

Ballot for Review: Ballot SC6 – Revocation Timeline Extension

Start of Review Period: September 14, 2018 at 8:00 pm Eastern Time

End of Review Period: October 14, 2018 at 8:00 pm Eastern Time

A version of the most recent Baseline Requirements including the changes made by the Ballot is attached. I also attach a version in “showing changes” mode to help with your review.

Please forward any Exclusion Notice relating to Essential Claims to the Chair by email to kirk.hall@entrustdatacard.com before the end of the Review Period. See current version of CA/Browser Forum Intellectual Property Rights Policy for details.

(Optional form of Exclusion Notice is attached)

Latest releases
Server Certificate Requirements
SC098: Process RFC 8657 CAA Parameters - Jun 16, 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
v1.0.15 - Ballot SMC017v2 - Jul 30, 2026

This ballot increases the minimum RSA key size for Root and Subordinate CA certificates in the S/MIME BRs from 2048 to 4096 bits for keys created after September 15, 2026, while retaining the 2048-bit minimum for Subscriber certificates. The ballot further requires that by September 15, 2027, CAs SHALL NOT issue Subscriber certificates from any Sub-CA whose RSA key modulus is less than 3072 bits, effectively sunsetting issuance from legacy 2048-bit Sub-CAs. The ballot also includes minor typographic corrections. This ballot is proposed by Martijn Katerbarg (Sectigo) and endorsed by Ben Wilson (Mozilla) and Stephen Davidson (DigiCert)

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).