The National Communications Commission Organization Act Article 5
In the event where the Chairperson should be vacant or indisposed to exercise his or her duties, the Vice Chairperson is to act on behalf of the Chairperson; in the event where both the Chairperson and the Vice Chairperson should be vacant or indisposed to exercise their duties, the Head of the Executive Yuan (Premier) shall designate a Commissioner to act on behalf of the Chairperson.
中文原文 國家通訊傳播委員會組織法第5條
主任委員出缺或因故無法行使職權時，由副主任委員代理；主任委員、副主任委員均出缺或因故無法行使職權時，由行政院院長指定委員一人代理主任委員。