Irrigation Act Article 5

The Competent Authority shall demarcate and publicize farmland water conservancy facilities areas, as well as manage and maintain the facilities; the same applies to the alteration or elimination of such areas. In cases where such areas infringe on indigenous people’s regions, the Competent Authority shall make public announcements in cooperation with the central Competent Authority for indigenous affairs.Regulations governing the standards for demarcation of farmland water conservancy facilities areas as mentioned in the preceding Paragraph, their management and maintenance, alteration, elimination, or other relevant matters shall be stipulated by the Competent Authority in cooperation with the central Competent Authority for water resources.
中文原文 農田水利法第5條
主管機關應劃設農田水利設施範圍,加以管理維護,並公告之;其變更、廢止時,亦同。
涉及原住民族地區者,由主管機關會商中央原住民族主管機關公告之。
前項農田水利設施範圍之劃設基準、管理維護、變更或廢止及其他相關事項之辦法,由主管機關會商中央水利主管機關定之。

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