Water Supply Act Article 50

The service equipment of water users shall be installed in accordance with the established standards. Water service to users shall not begin until the aforementioned equipment has been found qualified by the water supply enterprise or by a professional organization designated by the water supply enterprise.The central authority-in-charge shall stipulate the standards for service equipment.
中文原文 自來水法第50條
自來水用戶用水設備,應依用水設備標準裝設,並經自來水事業或由自來水事業委由相關專業團體代為施檢合格後,始得供水。
前項用水設備標準,由中央主管機關定之。

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