Act of Preferential Treatment for Military Personnel and Their Dependents Article 6

Regardless of their native place, temporary or the duration of the temporary registered domicile address, service personnel and their dependents may apply for preferential treatments with the township (town, city, district) office where they reside by presenting the military service entries on their national identification cards or other specified documents.
中文原文 軍人及其家屬優待條例第6條
軍人及其家屬不分本籍、寄籍與寄居久暫,得憑身份證之兵役記載或其他規定之證件,向居住地之鄉鎮公所申請優待。

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