# Domain Name and IP Address validation maximum data reuse period is 10 days. — TLS certificate and CA requirement effective dates (CA/Browser Forum, Chrome, Mozilla)

For Domain Name and IP Address validation maximum data reuse period is 10 days., requirement is Domain Name and IP Address validation maximum data reuse period is 10 days; effective date is 2029-03-15; baseline requirements section is 4.2.1; authority is CA/Browser Forum TLS Baseline Requirements; scope is all publicly-trusted CAs issuing TLS server certificates, recorded from its source on 2026-08-05.

- **Requirement:** Domain Name and IP Address validation maximum data reuse period is 10 days. _(verified: appears in the quote below)_
- **Effective date:** 2029-03-15 _(verified: appears in the quote below)_
- **Baseline Requirements section:** 4.2.1 _(verified: appears in the quote below)_
- **Authority:** CA/Browser Forum TLS Baseline Requirements _(our reading, not quoted from the source)_
- **Scope:** all publicly-trusted CAs issuing TLS server certificates _(our reading, not quoted from the source)_

## What the source says

> 2029-03-15 | 4.2.1 | Domain Name and IP Address validation maximum data reuse period is 10 days.

## Source

- https://cabforum.org/working-groups/server/baseline-requirements/requirements/

Last verified: 2026-08-05. Review by: 2026-11-03.
Part of [TLS certificate and CA requirement effective dates (CA/Browser Forum, Chrome, Mozilla)](https://referencesource.org/tls-certificate-requirement-effective-dates/).