Regulations Governing the Collection, Management, and Use of Individual Biometric Data Article 8
Individual biometric characteristics data shall be preserved for twenty years starting from the last date of entry by aliens, nationals without household registration in the Taiwan area, and people of the mainland China area, Hong Kong, and Macau; however, there is a provision that the National Immigration Agency will acquiesce to an extension of the above period when made by higher authorities.The recorded biometric data of an individual referred to in the preceding paragraph shall be deleted within six months after he/she has changed his/her status to become an R.O.C. national with household registration in the Taiwan Area.
中文原文 個人生物特徵識別資料蒐集管理及運用辦法第8條
個人生物特徵識別資料檔案應自外國人、臺灣地區無戶籍國民、大陸地區人民、香港及澳門居民最後一次入國（境）之日起算，保存二十年。
但經入出國及移民署報請上級機關同意延長者，不在此限。
依前項規定保存之個人資料，自其身分轉換為居住臺灣地區設有戶籍國民後六個月內刪除之。
但經入出國及移民署報請上級機關同意延長者，不在此限。
依前項規定保存之個人資料，自其身分轉換為居住臺灣地區設有戶籍國民後六個月內刪除之。