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Notice of IPR Review Period for BR Amendments Made by Ballots 96, 97, 99, 102 and 105

The following changes have been made to the Baseline Requirements since the last Notice of IPR Review Period:

Ballot 96 amended sections 11.1.3 and 11.1.4 dealing with Wildcards and new gTLDs.

Ballot 97 – Prevention of Unknown Certificate Contents – amended section 10.2.3 and Appendix B and also addressed RFC 5280.

Ballot 99 added an allowance for DSA keys to Appendix B

Ballot 102 amended section 9.2.3 concerning the use of domainComponents in certificates.

Finally, the attached redlined version of the Baseline Requirements shows the changes based on Ballot 105, which just passed.

Pursuant to Section 4.1 of the CA/Browser Forum’s IPR Policy, this is notice of the commencement of a 30-day IPR maintenance-guideline review period by which certain provisions of the IPR will become applicable to the above-mentioned changes made to the Baseline Requirements by Ballots 96, 97, 99, 102 and 105. During this IPR review period you are to review these amendments and consider any licensing obligations with respect to any Essential Claims that may be encompassed by such amendments.

The 30-day IPR review period for these changes shall end on 28 August 2013.

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SC098: Process RFC 8657 CAA Parameters - Jun 16, 2026

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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)

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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).