An Apostille is a certificate that authenticates the origin of a public document (e.g., a birth, marriage or death certificate, a judgment, an extract of a register or a notarial attestation). In Arizona, the Arizona Secretary of States Office prepares this document and information is available at Apostille and Document Authentication | Arizona Secretary of State (azsos.gov).
The apostille proves that public document is authentic. The apostille certificate confirms the signature, seal, or stamp on a public document to be genuine so that it will be accepted when presented in another country.
Arizona Secretary of State’s Office website.