Administrative Procedure Act Article 142

In any of the following circumstances, an administrative contract in lieu of administrative disposition shall be null and void:1. Where an administrative disposition with the similar contents would be null and void;2. Where an administrative disposition with the similar contents would be voidable by reason of being contrary to law and the fact is known to both parties to the contract ;3. Where the conclusion of a compromise agreement does not meet the requirement set forth in article 136 hereof; and4. Where the conclusion of a bilateral contract does not meet the requirement set forth in article 137 hereof.
中文原文 行政程序法第142條
代替行政處分之行政契約,有下列各款情形之一者,無效︰一、與其內容相同之行政處分為無效者。
二、與其內容相同之行政處分,有得撤銷之違法原因,並為締約雙方所明知者。
三、締結之和解契約,未符合第一百三十六條之規定者。
四、締結之雙務契約,未符合第一百三十七條之規定者。

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