National Palace Museum Organization Act Article 6

Currently employed assistant clerks of the NPM without civil service qualifications, who were employed according to the now-defunct Administrative Regulations for Assistant Clerks, may remain in their posts and continue to work as associate clerks until such employment comes to an end.
中文原文 國立故宮博物院組織法第6條
本院原依雇員管理規則僱用之現職雇員,其未具公務人員任用資格者,得占用書記職缺,繼續僱用至離職時為止。

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