Regulations Governing Certification by Professional Environmental Engineers Article 6

Environmental engineers commissioned to perform certification work shall keep effective records of the certification process, and shall compile such records together with all the relevant data and documents in the form of worksheets.Worksheets shall serve as proof that environmental engineers have discharged their professional work responsibilities, and are a basis for the comments shown in the certification reports compiled.
中文原文 環境工程技師簽證規則第6條
環工技師受託執行簽證業務,應將簽證經過確實作成紀錄,連同所有相關資料、文據彙訂為工作底稿。
工作底稿為環工技師證明已盡專業工作責任,及作成簽證報告所表示意見之依據。

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