The Law of Ships Article 21
Ship owner, who fails to apply for cancellation of registration and submit the certificate for withdrawal pursuant to Paragraph 1 of the preceding Article, will be ordered by the shipping administration authority of the port to complete the procedures within one month. For those who still fail to do so without proper reason, the shipping administration authority may cancel the registration and withdraw the Certificate of Vessel's Nationality (Register) at its own discretion.
中文原文 船舶法第21條
船舶所有人未依前條第一項規定申請註銷登記及繳銷證書，經船籍港航政機關命其於一個月內辦理，屆期仍不辦理，而無正當理由者，得由航政機關逕行註銷其登記及原領證書。