Organic Agricultural Product and Organic Agricultural Processed Product Certification Management Regulations Article 16

A certification body shall perform surveillance of agricultural product operators with certified products at regular or unfixed intervals.The surveillance in the preceding Paragraph shall be conducted at least once each year. The frequency of surveillance may be increased when necessary.
中文原文 有機農產品及有機農產加工品驗證管理辦法第16條
驗證機構對通過驗證產品之農產品經營業者應定期或不定期實施追蹤查驗。
前項追蹤查驗每年至少一次,必要時得增加追蹤查驗次數。

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