The Administrative Execution Act Article 8

If one of the following circumstances occurs, the enforcement authority shall terminate the execution pursuant to its authority or according to the application of the obligor or the interested person:1. The obligation has been completely performed or finished executing.2. The revocation or alteration of the administrative disposition or ruling has been confirmed.3. The performance of the obligation is proved to be impossible.That the administrative disposition or ruling has been partly revoked or altered has been confirmed, the enforcement authority shall terminate the execution for the revoked or altered proportion of the original disposition or ruling.
中文原文 行政執行法第8條
行政執行有下列情形之一者,執行機關應依職權或因義務人、利害關係人之申請終止執行:
一、義務已全部履行或執行完畢者。
二、行政處分或裁定經撤銷或變更確定者。
三、義務之履行經證明為不可能者。
行政處分或裁定經部分撤銷或變更確定者,執行機關應就原處分或裁定經撤銷或變更部分終止執行。

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