Basic Code Governing Central Administrative Agencies Organizations Article 24

The names of a government agency’s internal units shall reflect their functions. District names may be used for functions limited to certain districts.
中文原文 中央行政機關組織基準法第24條
政府機關內部單位之名稱,除職掌範圍為特定區者得以地區命名外,餘均應依其職掌內容定之。

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