Confiscation refers to illegal, expired, abandoned and other items. Among them, overdue goods refer to goods that have not been declared to the customs for three months from the date of declaration of the means of transport. Goods that have not gone through customs formalities or are unclaimed within the time limit stipulated by the customs, as well as postal articles that cannot be delivered and returned, shall be extracted and sold by the customs according to law, so goods that have not been declared within the time limit are not confiscated.