Regulations for Passenger Ship Administration Article 137
All watertight doors and connecting accessories and indicators thereof, and all active valves that shall be shut off as required for keeping watertightness and those in the connecting pipes required for damage control, shall be inspected periodically at least once every seven days during navigation.
中文原文 客船管理規則第137條
各水密門及其所連接之各項機件與指示器，與為使一艙區具有水密性所必須關閉之所有活閥，及為損害管制所必需連通管路上之所有活閥，應於航行中，至少每七日舉行定期檢查一次。