Telecommunications Universal Service Regulations Article 28-1

Within three years of the effective date of the Telecommunications Management Act, the competent authority may designate Type I telecommunications enterprises that have obtained a license in accordance with the Telecommunications Act and have not registered in accordance with the Telecommunications Management Act to serve as Type I universal service providers under the Telecommunications Management Act.
中文原文 電信普及服務管理辦法第28-1條
於電信管理法施行之日起三年內,主管機關得指定依電信法取得執照且未依電信管理法辦理登記之第一類電信事業,擔任電信管理法之普及服務提供者。

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