Regulations on Good Hygiene Practice for Food Article 11

Records, reports, or other relevant documents and data prepared by food business operators in accordance with these Regulations shall be retained for at least five years.
中文原文 食品良好衛生規範準則第11條
食品業者依本準則作成之紀錄、報告或其他相關文件、資料,應至少保存五年。

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