A Montana Request for Apostles or Authentications is a service provided by the Montana Secretary of State's office. It provides individuals and organizations with authentication of documents that have been signed or notarized by a public official in Montana. An apostle is an internationally recognized form of authentication issued by the Secretary of State's office, and is used to prove the authenticity of a document in other countries. An authentication is a form of authentication used within the United States. Types of Montana Requests for Apostles or Authentications include: Apostlele: A form of authentication issued by the Montana Secretary of State that is recognized in other countries. — Authentication: A form of authentication used within the United States. — Notarization: A form of authentication issued by a Notary Public in Montana. — Certification: A form of authentication used to verify the authenticity of a public official's signature.