Regulations for Passenger Ship Administration Article 92

Fresh water exclusively used for drinking shall be stored in tanks or drums, which shall not be made of materials that would cause deterioration of taste or quality of the water; nor shall any coating that would cause deterioration of taste or quality of water be used for painting the interior of such tanks or drums.
中文原文 客船管理規則第92條
專供飲用之清潔淡水,應以櫃或桶儲存之,製造各該櫃桶之材料不得使儲存淡水變味或變質,並不得於櫃桶內部抹有能使淡水變味或變質之塗料。

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