Enforcement rules concerning the implementation of industrial group act. Article 29
Directors and supervisors of industrial board of trade should attend meetings of council and board of supervisors in person, no substitute by others is allowed, two consecutive leaves are considered to be one absence (except for leave of absence to attend to public affairs), those absent from two consecutive meetings are considered to have resigned, and the vacancies are to be filled by backup directors and supervisors.
中文原文 工業團體法施行細則第29條
工業同業公會理事監事均應親自出席理事會議監事會議，不得委託他人代理，除公假外，連續請假二次，以缺席一次論，如連續缺席滿二個會次者，視同辭職，由候補理事候補監事依次遞補。