Administrative Procedure Act Article 91
Where the government authority or officer requested to execute service of process has notified the administrative authority of the successful execution of or non-execution of the service, the administrative authority shall put such notification on the file.
中文原文 行政程序法第91條
受囑託之機關或公務員，經通知已為送達或不能為送達者，行政機關應將通知書附卷。