Act of Merit for Officers and Noncommissioned Officers of the Armed Forces Article 9

Those units that are on a war mission and personnel under special circumstances will not be rated on their performance, when circumstances allow, a make up rating will be made.
中文原文 陸海空軍軍官士官考績條例第9條
正在遂行戰鬥任務之單位及特殊狀況之人員,暫停辦理考績,俟狀況許可,再行補辦。

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