Enforcement Rule of the Archives Act Article 23

Public access of the archives under Article 22 of the Act shall comply with the Act and the Direction for Access to Archives of the archives prescribed by the central archives competent authority.If the archives under a special circumstance cannot be accessed within thirty years in accordance with Article 22 of the Act, the original agency responsible for the management of those records may transfer the reasons and the prolonged period to the central archives competent authority for submitting it via the Executive Yuan for obtaining the approval by the Legislative Yuan.The thirty-year period prescribed in the preceding paragraph is calculated from the files and begins on the latest date of the record of that file.
中文原文 檔案法施行細則第23條
本法第二十二條所定國家檔案之開放應用,應依本法及檔案中央主管機關所定之國家檔案開放應用要點辦理。
國家檔案因有特殊情形,無法依本法第二十二條規定於三十年內開放應用者,原管理該檔案機關得敘明具體事由及擬延長開放之期限,由檔案中央主管機關報請行政院核轉立法院同意。
前項三十年期限之計算,以案卷為單位,並以該檔案文件產生日最晚者為準。

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