The post certificate is given to continuing education once a year, generally from the winter of 1 1 to the winter of March. If the name of the safety production assessment certificate is wrong, it should be a safety production certificate, which is divided into the qualification certificate of the main person in charge of safety production and the qualification certificate of the safety production management personnel. All of them are necessary documents for construction enterprises, otherwise, it is impossible to obtain the enterprise's safety production license and bid. After obtaining the safety production qualification certificate through examination, continuing education should be conducted once a year, otherwise the certificate will be invalid.