Once you have signed and returned your marriage certificate to the county clerk’s office, they will keep the record on file permanently. You can usually order a new one online. You do not have to reapply or go through any of the paperwork necessary to obtain a license to wed. There is usually a fee associated with obtaining a copy of your marriage license, and in some cases you may have to visit the county clerk’s office in person to show I.D. Contact the county clerk’s office in the county where you were married to verify the details about what they require.