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Baseline Requirements for TLS Server Certificates and Extended Validation (EV) Guidelines

These documents are maintained by the Server Certificate Working Group.

Baseline Requirements for Code Signing Certificates

This document is maintained by the Code Signing Certificate Working Group.

Network and Certificate System Security Requirements

This document is maintained by the Network Security Working Group.

Bylaws

CA/Browser Forum Bylaws are available on the Bylaws page.

Intellectual Property Rights Policy Documents

IPR documents are available on the IPR Policy page.

Guidance on Deprecation of Use of Internal Names and IP Addresses

Guidance on the Deprecation of Use of Internal Names and IP Addresses is available here.

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