zhangjiagang electrician certificate has not expired because of the epidemic. According to the release of Jiangsu Energy Supervision Office in September, 2121, the expiration time of electrician's license just happened to be postponed by government departments during the epidemic. If the safety certificate of the principal person in charge of the enterprise, safety management personnel and special operations personnel expires, the validity period will be automatically postponed to the end of epidemic prevention and control. Simplify the procedures for returning to work and production, and have good safety management. Enterprises that have not had production safety accidents since 2119 will return to work and resume production on their own under the premise of implementing safety precautions. The main person in charge of the enterprise will make a safety commitment, and will no longer report at different levels, and the site will be accepted and stamped; For self-examination and self-reporting and self-correction of potential safety risks, online tracking indicators will be implemented.