Common Duct Act Article 17

The competent authority shall conduct the management of Common Duct, if necessary the management may be entrusted to the original investors or specific agencies. The regulations of management shall be prescribed by the competent authority after consultation with the relevant utility agency (or organization).
中文原文 共同管道法第17條
共同管道由各該主管機關管理,必要時得委託投資興建者或專業機構代為管理。
其管理辦法,由主管機關會商各管線事業機關(構)定之。

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