Deleting a Certificate Authority
Delete a certificate authority (CA).
You can only delete a certificate authority version with a rotation state of deprecated. For a deprecated version to exist, a current version and a previous version must also exist. Unless you want to delete a certificate authority entirely, you must maintain at least one version of the certificate authority. Furthermore, the certificate authority can't have any associations, current issued certificates, or subordinate certificate authorities. You must delete all associations, certificates, and subordinate certificate authorities issued by a parent certificate authority before you can delete the parent certificate authority.
When you delete a certificate authority, the deletion doesn't happen immediately. By default, a certificate authority is permanently deleted 30 days after you schedule it for deletion. At minimum, the certificate authority continues to exist for another seven days. Certificate authorities pending deletion count against their own service limits and are subject to restrictions on the reuse of a certificate authority display name.