Regulations for the Establishment and Management of Private Elementary Schools, Junior and Senior High Schools, and Affiliated Preschools for International Residents Article 21

A SIR shall have a principal whose selection shall be made by the Board of Directors.The principal shall manage the school’s affairs, execute the resolutions of the Board, act under the supervision and evaluation of the Board and represent the school to the public.
中文原文 私立高級中等以下外國僑民學校及附設幼兒園設立及管理辦法第21條
外國僑民學校應置校長一人,由董事會遴聘之。
校長依據法令綜理校務,執行董事會議之決議,受其監督、考核,並於職務範圍內,對外代表學校。

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