Required. According to the Supreme People's Court's "Several Provisions on the Service of Civil Litigation Documents by Court Special Delivery", before the appeal case is transferred to the file, the court requires both parties to the appeal case to carefully fill in the confirmation of address for the delivery of litigation documents and submit it to two or more court officials. After the personnel read it out correctly, it will be signed by the parties to confirm, and the case will be transferred to the court of second instance, which will serve as the basis for the court of second instance to notify, summon and serve the parties.