Construction Industry Act Article 2

The "competent authorities" mentioned in this Act refers to the Ministry of the Interior at the central level, the municipal governments at the municipal level, and the county (city) governments at the county (city) level.
中文原文 營造業法第2條
本法所稱主管機關:在中央為內政部;在直轄市為直轄市政府;在縣(市)為縣(市)政府。

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