Coastal Zone Management Act Article 3

The term “competent authority” referred to in this Act shall be the Ministry of the Interior at the central level, the municipal government at the municipal level, and the county (city) government at the county (city) level.
中文原文 海岸管理法第3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.