Regulations for Passenger Ship Administration Article 82

The area of passenger cabins or decks shall be computed as follows:1. For well-shaped places: average width * length;2. For well-shaped places: take the fore, mid and aft widths; add the sum of the fore and aft widths with 4 times of the mid width; therewith, the grand total obtained * length/6;3. For inclined and bending areas in the stern behind the spot having a length (from the stern equals to one half of the breadth: 2/3 of the length * the fore breadth of the areas.4. The area obtained from the above computation shall deduct the areas that shall not be included as specified in the two preceding articles.
中文原文 客船管理規則第82條
乘客艙室或甲板面積之計算,應依下列規定:
一、形狀整齊之處所,以平均寬度乘以長度。
二、形狀整齊之處所,量其前中後三處之寬度,然後以前後二處寬度之和加中央寬度四倍後之總和,乘以長度再除以六。
三、船尾長度為寬度二分之一以後之斜曲處所,以長度三分之二乘以該處前端之寬度。
四、依前述各款規定計算所得之面積,應再扣減前二條規定不予列計之面積。

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