Regulations for Implementing and Rewarding Skills Competition Article 38

If the competitor needs to leave the competition premises for any reason during the competition, it shall be subject to the consent of the Chief Expert and the competitor shall be accompanied by a dedicated person. The time of absence shall not exceed fifteen minutes, or twenty minutes for the disabled.The duration of the competitor's absence mentioned in the previous paragraph shall be included in the time of competition. If a competitor exceeds the time period provided specified in the previous paragraph, the competitor shall be disqualified for the competition of the current day (session), unless it is not attributable to the personal conduct of the competitor.
中文原文 技能競賽實施及獎勵辦法第38條
競賽過程中,選手因故須離開競賽場地時,應經裁判長同意,並派專人陪同,不得逾十五分鐘,身心障礙者不得逾二十分鐘。
前項選手離場時間照計,不得扣除。
選手逾前項所定時限者,取消其當日(場)競賽資格。
但非可歸責於選手個人行為者,不在此限。

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