Administrative Procedure Act Article 107

In any of the following circumstances, the administrative authority shall hold a hearing:1. Where the law requires explicitly the holding of a hearing; and2. Where the administrative authority considers it necessary to hold a hearing.
中文原文 行政程序法第107條
行政機關遇有下列各款情形之一者,舉行聽證︰一、法規明文規定應舉行聽證者。
二、行政機關認為有舉行聽證之必要者。

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