Radio Taiwan International Establishment Act Article 13

RTI shall be consisted of a president and two or three vice presidents who shall serve a term of three years and may be reappointed once.The president shall answer to and be overseen by the board of directors and be responsible for day-to-day management. The vice presidents shall aid the president in carrying out the work of the radio station.
中文原文 中央廣播電臺設置條例第13條
本臺置總臺長一人,副總臺長二人或三人,任期均為三年,期滿得續聘一次。
總臺長受董事會之指揮、監督,綜理臺務;副總臺長輔佐總臺長,襄理臺務。

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