Ballot CSC-31: Maximum Validity Reduction
Code Signing Certificate Working Group
Key dates
- Effective date
- 01 Mar 2026 3 months ago
- Voting opened
- 06 Oct 2025 8 months ago
- Voting closed
- 13 Oct 2025 8 months ago
- IPR review ends
- 13 Nov 2025 7 months ago
- Discussion opened
- 16 Sep 2025 9 months ago
- Discussion closed
- 06 Oct 2025 8 months ago
Resources
AI Summary
Outcome
- The ballot passed.
- The voting period completed with the ballot marked PASSED.
- The bylaws requirements listed on the page were all marked MET, including Certificate Issuer support, Certificate Consumer support, at least one affirmative vote in each category, and quorum.
- The IPR period completed with no IPR Exclusion Notices filed.
- The ballot was adopted as of 2025-11-17.
- CSC BRs version 3.10.0 were published following adoption.
What the ballot changes
- The ballot updates the Code Signing Baseline Requirements from version 3.9.
- It reduces the maximum validity for code signing certificates from 39 months to 460 days.
- The GitHub compare shows the prior rule that a Code Signing Certificate issued to a Subscriber or Signing Service must not exceed 39 months was replaced.
- The new rule states that for all Code Signing Certificates issued after 2026-03-01, the validity period for the Code Signing Certificate issued to a Subscriber must not exceed 460 days.
Scope and applicability
- The ballot page summary says the change is effective 2026-03-01.
- The redline text applies the new 460-day limit to all Code Signing Certificates issued after 2026-03-01.
- The changed sentence in the redline refers to certificates issued to a Subscriber.
Process dates
- Discussion ran from 2025-09-16 18:00 UTC to 2025-10-06 18:00 UTC.
- Voting ran from 2025-10-06 18:00 UTC to 2025-10-13 18:00 UTC.
- The IPR review period ran from 2025-10-14 08:00:00 UTC to 2025-11-13 08:00:00 UTC.
Voting results
- Certificate Issuers cast 9 votes total: 7 YES, 0 NO, and 2 ABSTAIN.
- The YES votes from Certificate Issuers were Asseco Data Systems SA (Certum), DigiCert, eMudhra, HARICA, IdenTrust, Sectigo, and SSL.com.
- The ABSTAIN votes from Certificate Issuers were Actalis S.p.A. and GlobalSign.
- Certificate Consumers cast 1 vote total: 1 YES, 0 NO, and 0 ABSTAIN.
- The Certificate Consumer YES vote was Microsoft.
- Effective date
- 2026-03-01
- Voting opened
- 2025-10-06
- Voting closed
- 2025-10-13
- IPR review ends
- 2025-11-13
- Discussion opened
- 2025-09-16
- Discussion closed
- 2025-10-06
2026-03-01 — The validity period for the Code Signing Certificate issued to a Subscriber must not exceed 460 days For all Code Signing Certificates issued after this date
AI-generated from the CABF ballot page. The official CABF article remains the authoritative source.
Vote result
Proposers
Karina Sirota Goodley and Nate Santiago of Microsoft and endorsed by Martijn Katerbarg of Sectigo and Scott Rea of eMudhra.
Excerpt
SearchHome » All CA/Browser Forum Posts » Ballot CSC-31: Maximum Validity ReductionBallot CSC-31: Maximum Validity ReductionThe Intellectual Property Review (IPR) period for Ballot CSC-31 (Ballot CSC-31: Maximum Validity Reduction) has completed.