The Law of Ships Article 58

Once the inspection and measurement of yachts have been authenticated by a foreign or domestic institution recognized by the competent authority, it shall be handled by the shipping administration authority at the port of calling. Its certificate or registration shall be handled by the shipping administration authority at the port of registry or place of registration.
中文原文 船舶法第58條
遊艇之檢查、丈量經主管機關認可之國內外機構驗證後,由遊艇所在地之航政機關辦理;其登記或註冊、發證,由遊艇船籍港或註冊地航政機關辦理。

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