Electronic Signatures Act Article 13

Prior to termination of its services, a certification authority shall complete the following measures:(1) notice shall be given to the competent authority at least thirty days prior to the termination.(2) any service relevant to a certificate that is still valid at the time of termination shall be assigned to another certification authority to take over.(3) notice of termination of services and the assignment of valid certificates to another certification authority shall be given to the parties at least thirty days prior to the termination.(4) the certification authority shall transfer its archives and records to the assigned certification authority.In the event that no other certification authority is willing to take over the services pursuant to the second subparagraph in the first paragraph of this article, the competent authority may appoint a certification authority to take over. If necessary, the competent authority may revoke any certificate that is still valid at the time by public announcement.The preceding paragraph is also applicable to the certification authority whose operation has been suspended pursuant to this Act or otherwise.
中文原文 電子簽章法第13條
憑證機構於終止服務前,應完成下列措施:
一、於終止服務之日三十日前通報主管機關。
二、對終止當時仍具效力之憑證,安排其他憑證機構承接其業務。
三、於終止服務之日三十日前,將終止服務及由其他憑證機構承接其業務之事實通知當事人。
四、將檔案紀錄移交承接其業務之憑證機構。
若無憑證機構依第一項第二款規定承接該憑證機構之業務,主管機關得安排其他憑證機構承接。
主管機關於必要時,得公告廢止當時仍具效力之憑證。
前項規定,於憑證機構依本法或其他法律受勒令停業處分者,亦適用之。

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