Land Surveying and Mapping Act Article 2

The term “competent authority” referred to in this Act means the Ministry of the Interior at the central government level; the special municipal government at the special municipal level, and the county(city) government at the county(city) level.
中文原文 國土測繪法第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.