Drinking Water Management Act Enforcement Rules Article 21

Containerized drinking water referred to in Article 28 of this Act means drinking water carried in water trucks, contained in tanks, supplied at water filling stations or other drinking water contained in a non-sealed and reversible manner.
中文原文 飲用水管理條例施行細則第21條
本條例第二十八條所稱盛裝飲用水,係指車載水、桶裝水、加水站供水或其他以非屬於密閉不可復原方式包裝之飲用水。

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