20 CFR § 655.539
Effective date and validity of filed attestations for locations in Alaska
February 18, 2021
An attestation is filed and effective as of the date it is accepted and signed by the Certifying Officer. Such attestation is valid for the 12-month period beginning on the date of acceptance for filing, unless suspended or invalidated pursuant to §655.540 of this part. The filed attestation expires at the end of the 12-month period of validity.