An Apostille is a certificate that authenticates the signature of a public official or a notary public on a document for use in another country. 651-689-3446 - Want to translate your marriage certificate?Let us help you do it right so it lasts a lifetime. The certificate shall also contain the signatures of at least two of the witnesses present at the civil marriage who shall be at least 16 years of age. Apply for marriage license or certificate. For license, must apply in person. An affidavit is a written statement made under oath that is typically used in legal proceedings. Learn their purpose, when to use, and how to write. A marriage license issued from Scott County is valid for 6 months from the date of issuance and can be used anywhere in the state of Minnesota. Complete and submit the online application.