The Ship Registration Law Article 15
In the event that there has no document certifying the cause of registration or there has such document but is unavailable for submission, the reason shall be stated in the application form, with attachments of a letter of guarantee and the counterpart of the application form.The letter of guarantee referred to in the previous paragraph shall serve to certify that the applicant does not counterfeit and to declare the truth that the original documentary proof is unavailable for submission. The letter shall be countersigned by two or more guarantors, who are limited to the adults having registered the proprietorship of a ship in the district under the jurisdiction of the same authority.
中文原文 船舶登記法第15條
登記原因本無文件，或雖有而不能提出者，應於申請書內敘明事由，取具保證書並添具申請書副本。
前項保證書，應敘明申請人確無假冒及原文件不能提出之實情，由二人以上之保證人簽名，其保證人以在同一主管機關管轄區域內已有船舶所有權登記之成年人為限。
前項保證書，應敘明申請人確無假冒及原文件不能提出之實情，由二人以上之保證人簽名，其保證人以在同一主管機關管轄區域內已有船舶所有權登記之成年人為限。