To apply for a new marriage certificate, you need to bring your household register and ID card to the original marriage registration authority or the marriage registration authority in the place where one party's permanent residence is located. If the documents are complete, they can be reissued on the spot.
 According to the Marriage Registration Ordinance:
 Article 17 If a marriage certificate or divorce certificate is lost or damaged, the party concerned may apply to the original marriage registration authority or the marriage registration authority in the place where one party's permanent residence is located for a replacement with his household register or identity card. The marriage registration authority shall verify the marriage registration files of the parties and, if it is confirmed to be true, shall reissue the marriage certificate and divorce certificate for the parties.