The Seafarer Act Article 4

The competent authority specified in this Act means the Ministry of Transportation & Communications (the MOTC) and all matters governed by the Act shall be regulated by the shipping administration authority.
中文原文 船員法第4條
本法之主管機關為交通部,其業務由航政機關辦理。

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