Enforcement Rules of the Household Registration Act Article 9-1

I. If those who are required to make initial household registration in accordance with subparagraphs 1~3 of Article 15 meet one of the following conditions, the household registration office shall notify the National Immigration Agency:1.Not residing domestically; or2.The household address used when applying for initial household registration cannot be registered.II.The household registration office shall proceed with registration and notify the head of household or house owner after registration has been completed in accordance with subparagraph 6 of Article 48-2.
中文原文 戶籍法施行細則第9-1條
本法第十五條第一款至第三款應為初設戶籍登記者,有下列情事之一,戶政事務所應通知內政部移民署:
一、未居住國內。
二、申請初設戶籍地址不得設籍。
戶政事務所依本法第四十八條之二第六款逕為初設戶籍登記後,應通知該戶戶長或房屋所有權人。

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