The Seafarer Act Article 25-1

An employer hiring foreign national seafarers shall apply to the shipping administration authority for permission. The regulations on the application qualifications and procedures, conditions of permission, annulment, cancellation, duties, employment, employment management, foreign national seafarers to total employed seafarers ratio and other related matters shall be prescribed by the competent authority.
中文原文 船員法第25-1條
雇用人僱用外國籍船員,應向航政機關申請許可,始得僱用;其申請資格與程序、許可條件、廢止、職責、僱用、僱傭管理、受僱人數比率及其他相關事項規則,由主管機關定之。

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