Common Duct Act Article 20

Entering or using the Common Duct shall be permitted beforehand by the competent authority. But the permission beforehand for entering or usage by the relevant technicians or enforcing officials in case of emergency shall be excluded. After the completion of the aforementioned entering or usage, they shall submit a report to the competent authority for record.As for the improper usage or using without permission, the competent authority may take necessary actions, and the violator shall defray the cost incurred. The permission details of entering or usage pursuant to the first sentence of preceding Paragraph shall be prescribed in the regulations of management.
中文原文 共同管道法第20條
進入或使用共同管道應先經主管機關許可。
但相關技術人員或依法執行公務者,因緊急事故進入或使用者,不在此限。
依前項規定進入或使用共同管道後,應報請主管機關備查。
未經許可或未依許可事項使用共同管道,該主管機關得採取必要措施,所需費用由使用人負擔。
依第一項進入或使用共同管道之許可事項,於管理辦法中定之。

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