Montana Copy Certification — Multiple is a form of document certification that can be used to certify multiple copies of a single document. It is used to verify the authenticity of a document by a qualified professional such as a Notary Public or Commissioner of Deeds. The certification verifies that the document is a true and accurate copy of an original document and is signed and dated by the certifying official. There are two types of Montana Copy Certification — Multiple: Full Copy Certification and Partial Copy Certification. Full Copy Certification is used to certify that the document is a true and accurate copy of an original document, while Partial Copy Certification is used to certify that certain information contained within the document is true and accurate.