Regulations for Reporting Telecommunications Services Inaccessible Due to Major Incidents Article 5

If a telecommunications enterprise is unable to provide telecommunication services due to a major incident other than those specified in the preceding 2 articles, the competent authority may order it to conduct notification within a specified time, if deemed necessary.
中文原文 電信事業重大事故無法提供電信服務通報辦法第5條
電信事業因前二條以外之重大事故,致無法提供電信服務者,主管機關認有必要時,得命其限期辦理通報。

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