The Law of Ships Article 9
Any R.O.C.-flag ship, unless having obtained a Certificate of Vessel's Nationality (Register), a Provisional Certificate of Vessel's Nationality (Register), a Certificate of Yacht or a Small-ship License, shall not navigate except for one of the following circumstances:1. When the ship is launched or in a trial voyage;2. When the ship is permitted or ordered to move by the shipping administration authority; or3. When it is a necessary measure to be taken due to emergency.
中文原文 船舶法第9條
中華民國船舶非領有中華民國船舶國籍證書、中華民國臨時船舶國籍證書、遊艇證書或小船執照，不得航行。
但有下列各款情形之一者，不在此限：
一、下水或試航。
二、經航政機關許可或指定移動。
三、因緊急事件而作必要之措置。
但有下列各款情形之一者，不在此限：
一、下水或試航。
二、經航政機關許可或指定移動。
三、因緊急事件而作必要之措置。