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Changes are coming to certificate lifetime policies. Beginning March 1, 2018, Comodo CA and other certificate authorities will reduce the maximum lifetime for all TLS certificates to a maximum of 825 days, or just over 27-months. This change follows the industry-wide policy change being implemented by the CA Browser Forum, which is requiring this certificate lifetime reduction policy for all Certification Authorities.

As a reminder:

  • Comodo CA will no longer sell certificates for terms longer than 27-months beginning March 1, 2018.
  • After March 1, any renewals or reissues of certificates that were originally for terms longer than 27-months will have their term truncated to the maximum permissible duration of 27-months. When the 27-months expires, customers will receive a free replacement certificate, which is valid for the remainder of the certificate duration.
  • There is no action required for 3-year certificates issued prior to March 1, 2018. These certificates are unaffected and will remain valid for their full term. However, should customers need to replace one of these certificates after March 1, the new regulations will apply.

Comodo CA will work closely with all of our customers to ensure a smooth transition. If you have questions, please contact your Comodo CA account manager or Comodo CA Support directly at Comodo CA channel partners can contact us at

For information about these new requirements, visit

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