Regulations for Inspection of Public Telecommunications Networks Article 12
If the establisher falls under any one of the following circumstances, the competent authority may conduct irregular info-communications security inspections to it：1. The info-communications security incident occurred on the public telecommunications networks and reached a level-3 cyber security incident or higher as stipulated in the Regulations on the Notification and Response of Cyber Security Incident.2. There is a likelihood that the public telecommunications network may endanger national security or info-communications security, and it is notified by relevant authorities.
中文原文 公眾電信網路檢驗辦法第12條
設置者有下列情形之一者，主管機關得對其辦理不定期資通安全檢驗：
一、公眾電信網路發生資通安全事件達資通安全事件通報及應變辦法規定之第三級資通安全事件以上。
二、公眾電信網路有危害國家安全或資通安全之虞，經有關機關通知。
一、公眾電信網路發生資通安全事件達資通安全事件通報及應變辦法規定之第三級資通安全事件以上。
二、公眾電信網路有危害國家安全或資通安全之虞，經有關機關通知。