Yantai Laishan Hai Yin Road No.46 Administrative Examination and Approval Service Center. According to the relevant information, the original certificate is not needed for the re-registration of the special operation certificate, and the training institution can be informed of the relevant information when registering, so as to review the registration. E-cert is as valid as the original. To download the e-Cert, please pay attention to the official account of WeChat "National Work Safety Examination". After registering on WeChat and authenticating with a real person, log in with the registered mobile phone number and download the e-cert on the webpage. If you really need to reissue the certificate, you can go to the window of the administrative examination and approval service center at No.46, Hai Yin Road, Laishan, Yantai City.