Organic Act of the Mainland Affairs Council of the Executive Yuan Article 17

The personnel of ranks and grades set forth in Articles 14 to 16-1 shall be assigned titles in accordance with the applicable title classifications provided for in Article 8 of the Civil Service Employment Act.
中文原文 行政院大陸委員會組織條例第17條
第十四條至第十六條之一列有官等職等人員,其職務所適用之職系,依公務人員任用法第八條之規定,就有關職系選用之。

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