Regulations for Passenger Ship Administration Article 15

The term "passenger cabin" when used herein shall mean the cabins, steerage cabins, lobbies, halls, public lounge, medical rooms, hospitals, lavatory, toilets and service places, together with passages, corridors and stairways, used exclusively for passengers.
中文原文 客船管理規則第15條
本規則所稱乘客艙室,指專為乘客所使用之房艙、統艙、餐廳、大廳、公共休息室、醫療室、病房、盥洗室、廁所等,以及為乘客服務之處所,連同其通道、走廊及梯道等。

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