Regulations for Passenger Ship Administration Article 12
If a coastal route in which a passenger ship navigates does not have severe sea conditions due to natural shields, the owner of the ship may apply to the shipping administration authority for determining such route as an inland water route.
中文原文 客船管理規則第12條
航行沿海航線之客船，因有天然屏障其全航線無險惡風浪者，船舶所有人得向航政機關申請將該船視為航行內水航線之客船。