This article and video will show Notaries to fill out each part of a notarial certificate, and common mistakes to avoid. For witnessing or attesting a signature: State of Washington.Download a notary acknowledgment form in PDF or Word format. Instructions for completing the AOP: □ Each parent must sign page 1 in the presence of a notary or third party witness. This video will walk you through the four common parts of a certificate and how to complete them. A Washington notary acknowledgment form is used to officially authenticate a signature on a legal document. Use our Child Travel Consent form to prove that a child can travel without their parents or guardians. This form or the written statement must be notarized. If the required consent is not submitted, the child may not be eligible for a U.S. passport. •. Notaries public fulfill their duties to refer fraud please ensure proper execution.