Enforcement Rules of the Child and Juvenile Welfare and Rights Protection Act Article 17

The recognition of “major family changes” that prevent a child or juvenile from living normally in their family, as described in Article 62, Paragraph 1 of the Act, shall be carried out by the local competent authority where the child or juvenile resides. The authority may consult with other relevant authorities as needed.
中文原文 兒童及少年福利與權益保障法施行細則第17條
本法第六十二條第一項所定家庭發生重大變故,致無法正常生活於其家庭者,由居住地主管機關認定之;必要時,得洽商有關機關認定之。

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