After you've completed the pre-certification validation, you can begin the certification process.
The Auditor Certifying Official must certify first.
Auditee Certifying Officials are responsible for the contents of the single audit. They must certify last and confirm the final submission.
Any changes made after certification by either party will have to be re-certified by all. This could include re-uploads of the audit package or workbooks.
If you are an auditor representing a Tribal entity that has opted to suppress its audit data, please review this Helpdesk article for important information related to the Auditor Certification Checklist.