Organization Act of National Air Service Corps, Ministry of the Interior Article 3

The Corps shall have one Director-general of a rank equivalent to a senior appointment at the thirteenth (13th) grade; two Deputy Director-general of a rank equivalent to a senior appointment at the twelfth (12th) grade.
中文原文 內政部空中勤務總隊組織法第3條
本總隊置總隊長一人,職務比照簡任第十三職等或列簡任第十三職等;副總隊長二人,職務列簡任第十二職等。

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