Regulations Governing Professional Engineer Certification for Public Constructions Article 12
Professional engineers are obliged for non-disclosure responsibilities and custody of the worksheets. The professional engineers shall not leak any contents thereof except the cases when borrowed by the clients. The professional engineers shall further keep such papers on file for a minimum of five years from the date on which the engineering services certification report is submitted. Where the professional engineer conducts business in accordance with Subparagraphs 2 or 3, Paragraph 1, Article 7 of the Act, the practicing entity shall take custody of the worksheets.
中文原文 公共工程專業技師簽證規則第12條
技師對於工作底稿應盡保密及妥善保管之責任，除應委託人要求借閱者外，不得洩漏其中任何資料，並應自提出工作簽證報告之日起，至少保存五年；其依本法第七條第一項第二款或第三款規定執業者，由執業機構負責保管工作底稿。