The Enforcement Rules of the Immigration Act Article 40

Individuals, legal representatives, or interested parties may apply for entry/exit relevant documents from the National Immigration Agency.
中文原文 入出國及移民法施行細則第40條
本人、利害關係人或其法定代理人,得向移民署申請入出國相關證明文件。

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