Regulations for Organization and Operation of Human Research Ethics Review Board Article 10

The aforesaid way of making a decision in an IRB meeting is by majority rule in principle. When a decision is made by means of voting, both positive and negative votes shall be recorded. Board members not attending the meeting shall not vote.
中文原文 人體研究倫理審查委員會組織及運作管理辦法第10條
前條審查會會議之議決方式,以多數決為原則;以投票方式表決時,應記錄其正、反等表決情形。
未出席會議之委員,不得參與表決。

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