Waste Disposal Act Article 37

The operation and monitoring for methods and facilities for storage, clearance and disposal of industrial waste shall be recorded in details and kept for at least three years for future reference.The management regulations for categories, methods, frequency and other binding matters for the testing in the foregoing paragraph shall be determined by the central competent authority.
中文原文 廢棄物清理法第37條
事業對於有害事業廢棄物貯存、清除、處理之操作及檢測,應作成紀錄妥善保存三年以上,以供查核。
前項檢測之項目、方法、頻率及其他應遵行事項之管理辦法,由中央主管機關定之。

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