According to the Management Regulations on Safety Technology Training and Assessment of Special Operators issued by the State Administration of Work Safety, Chongqing Electrician's Certificate can be re-examined in Mianyang, as long as relevant materials of employees working in Mianyang are provided.

Mianyang safety supervision department refused to review, there must be a reason. Under normal circumstances, if the relevant information of the holder is not found on the Internet, or the certificate is not audited within the specified time, the certificate is invalid. At this time, Mianyang safety supervision department cannot handle the examination of the holder.

Appendix: Review requirements and certificate revocation regulations.