What document must accompany a notary's authentication for international purposes?

The correct answer is the Apostille. An Apostille is a certificate that authenticates the origin of a public document, which is particularly important for documents that will be used internationally. It ensures that the document meets the legal requirements of the country in which it will be presented, as the Apostille verifies the legitimacy of the notary's signature and the capacity in which the notary acted.

When a notary public performs an act, such as witnessing a signature or certifying a document, and that document is intended for use outside of Guam or the United States, an Apostille is necessary. This process involves submitting the document to the appropriate authority that issues the Apostille, thereby making the document legally recognized in foreign jurisdictions that are part of the Hague Convention.

Other options, while related to legal processes, do not fulfill the specific requirement for international authentication. A license to practice law pertains to legal representation but does not serve as a form of authentication for documents. A Certificate of Authority is often used in business contexts but not in the context of notarization for international use. An Affidavit of Execution is a statement confirming that a notary witnessed the signing of a document; however, it does not provide the necessary international recognition that an Apostille