Private School Act Enforcement Rules Article 23

In Article 28 of the Act, an insufficient number of directors to hold a meeting means that the total number of directors calculated as prescribed in Article 32, Paragraph 3 of the Act is less than two-thirds of the total number of directors specified in the organizational charter, and a board meeting may not be held to decide important matters.
中文原文 私立學校法施行細則第23條
本法第二十八條所稱董事因人數不足無法召開董事會議,指董事總額依本法第三十二條第三項規定計算後,未達捐助章程所定董事總額三分之二,無法召開董事會議作成重要事項之決議。

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