Act of Military Service for Officers and Non-commissioned Officers of the Armed Forces Article 45

If Officers or Non-commissioned Officers have the seniority of Active Service before and after the implementation of the New Pension System, they shall be calculated jointly.
中文原文 陸海空軍軍官士官服役條例第45條
軍官、士官在退撫新制施行前後,均有現役年資者,應前後合併計算。

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