Standards for Buildings and Facilities of Tourist Hotels Article 11

Each guest room bathroom in a tourist hotel shall be equipped with shower facility, flush toilet and washing basin, and shall provide hot and cold running water.
中文原文 觀光旅館建築及設備標準第11條
觀光旅館客房浴室應設置淋浴設備、沖水馬桶及洗臉盆等,並應供應冷熱水。

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