Enforcement Rules of the Nationality Act Article 4

A foreign national or stateless person who has domicile in the territory of the Republic of China as referred to in Article 3 to Article 5 and Article 15 of this Act refers to a person who resides in the territory of the R.O.C. with the intention to reside for a long period and holds an Alien Resident Certificate or Alien Permanent Resident Certificate.
中文原文 國籍法施行細則第4條
本法第三條至第五條及第十五條所稱於中華民國領域內有住所,指以久住之意思,住於我國領域內,且持有有效之外僑居留證或外僑永久居留證者。

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