Shipping Act Article 13

Any vessel carrier engaging in liner service shall apply to the shipping administration authority for registry of route by enclosing proposal for operation and related documents once vessel allocation has been completed.For any changes made on the aforementioned registry, an application for registry change shall be made to the shipping administration authority.Any vessel carrier engaging in liner service shall transport passengers and cargoes in accordance with the routes and schedules specified in the registry.Any vessel carrier engaging in domestic liner service shall not decrease the sailing shifts or suspend them without due reason. The reduction or suspension, if any, shall be reported to shipping administration authority for file and inspection three (3) days prior to commencement for approval. Passengers shall be given notice by telecom network, newspaper or broadcast & TV. However, in case of notification failure arising out of force majeure, passengers shall be updated immediately and the shipping administration authority notified for rectification within three (3) days after the occurrence.The aforementioned period of suspension shall be limited to six (6) months; however, justifying reasons shall be explicitly depicted while applying for extension with the shipping administration authority; the term of extension shall be limited to six (6) months, once only.
中文原文 航業法第13條
船舶運送業申請經營固定航線,應檢附營運計畫及相關文件,於船舶配置完成後,向航政機關辦理航線登記。
前項登記內容有變更時,應向航政機關辦理變更登記。
船舶運送業經營固定航線,應依登記之航線及船期表,從事客貨運送。
船舶運送業經營國內固定客運航線,非有正當理由,不得減班或停航;減班或停航時,應於減班或停航三日前報請航政機關備查,並於營業場所公告及利用電信網路、新聞紙或廣播電視等方式周知乘客。
但因不可抗力因素不及報請備查者,應即時周知乘客,並於事後三日內報請航政機關備查。
前項停航期間不得超過六個月。
但有正當理由者,得敘明理由,向航政機關申請展延;展延期限為六個月,並以一次為限。

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