Act of Military Service for Officers and Non-commissioned Officers of the Armed Forces Article 7

Standing Officer Service refers to a civilian of the right age or on Active Duty or Reserved Non-commission Officer, Enlisted Soldier, who had voluntarily passed the entrance exams for a Military Academy/College or its equivalent level of schools in the country or abroad, and had completed and passed a Standing Officer education.
中文原文 陸海空軍軍官士官服役條例第7條
常備軍官役,以適齡國民或現役或後備之士官、士兵,依志願考取軍事校院或國內外同等學校,完成常備軍官教育,期滿合格者服之。

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