According to the Article 21 of the Code the marriage is the family union of a woman and a man registered in the state registry office. Procedurally, an application for marriage registration is submitted by a woman and a man personally to any civil registry office. If the couple can not submit the application personally for valid reasons, an application certified by a notary can be submitted by their legal representatives, whose authority must also be certified by a notary. If a marriage is not registered on the scheduled day for some reason, the application for marriage registration remains valid within three months from the date of its submission.