Aircraft Flight Operation Regulations Article 277

The maintenance personnel on board shall be given a rest period of at least 24 consecutive hours during any seven consecutive days of his/her duty, except for those who are performing emergency duties.
中文原文 航空器飛航作業管理規則第277條
航空器維護人員執勤時間於連續七日內,應給予連續二十四小時之休息。
但擔任緊急任務者,不在此限。

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