If you are asked to notarize an international document, find out first if your state permits the requested act. A PA notary serves a vital role in validating the authenticity of crucial documents.They verify identities, witness signature executions, and administer oaths. Complete your notarial certificate, sign with your official notary signature, print, type or stamp your name beneath your signature, and apply your seal. This article and video will show Notaries to fill out each part of a notarial certificate, and common mistakes to avoid. When filling out the affidavit, please print neatly and write "N. A." if an item does not apply to you. This is a private business under contract with. PennDOT to complete Pennsylvania motor vehicle transactions. Continuing Student Additional Terms of Institutional Aid Request.