Household Registration Act Article 51

A National Identification Card (hereinafter referred to as a National ID Card) represents one person's identity and is effective throughout the country.The Household Certificate should contain current household registration records within the household under the same household head and list all the members within the household. The head of the household should be listed in the first column.
中文原文 戶籍法第51條
國民身分證用以辨識個人身分,其效用及於全國。
戶口名簿應登載同一戶長戶內之現戶戶籍資料,用以證明該戶內之各成員,並以戶長列為首欄。

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