Regulations Governing Laboratory Testing for Communicable Diseases and Management of Laboratory Testing Institutions Article 9

The validity of the designated, commissioned, or certified laboratory testing institutions for communicable diseases shall be no longer than four years.
中文原文 傳染病檢驗及檢驗機構管理辦法第9條
經指定、委託或認可為檢驗機構者,其期限最長為四年。

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