Administrative Appeal Act Article 47

The documents of an administrative appeal shall be served via post deliver with postal service certification in which declares the administrative appellant, intervenor appellant, representative of aforesaid parties, administrative appeal representative’s domicile, office or business center address.While the documents of an administrative appeal are not able to serve stipulated in last Paragraph, the agency with jurisdiction of administrative appeal might send its staff or entrust the agency which the administrative action was made or policy agency in charge to serve and service certification shall be made by one who served.The service of the administrative appeal documents could be made by applying mutatis mutandis for Article 67~69 and Article 71~83 of the Administrative Litigation Procedure Act otherwise stipulated in last two Paragraphs.
中文原文 訴願法第47條
訴願文書之送達,應註明訴願人、參加人或其代表人、訴願代理人住、居所、事務所或營業所,交付郵政機關以訴願文書郵務送達證書發送。
訴願文書不能為前項送達時,得由受理訴願機關派員或囑託原行政處分機關或該管警察機關送達,並由執行送達人作成送達證書。
訴願文書之送達,除前二項規定外,準用行政訴訟法第六十七條至第六十九條、第七十一條至第八十三條之規定。

English translation for reference only; the Chinese text prevails. Not legal advice.