If the security officer B certificate is not renewed after the expiration, the Municipal Construction Committee will cancel it according to law. At the end of each month, the registration center will summarize the change information of the holder of the safety officer B certificate and report it to the Construction Safety Department and the Construction Management Office of the Municipal Construction Committee. The Construction Safety Department and the Construction Management Office will organize the verification of safety production license and enterprise qualification from time to time according to the changes of personnel information. If the holder of the safety officer B certificate violates the laws and regulations on safety production and fails to perform the duties of safety production management, resulting in a general accident on the construction site, the Municipal Construction Committee will temporarily detain the safety officer B certificate of the relevant project leader for 6 months, and can only take up the post after passing the re-inspection after 6 months; In case of major and above accidents, the safety officer B certificate of the relevant personnel shall be withdrawn, and the safety production assessment shall not be carried out within 3 years, which constitutes a crime. The persons who are directly responsible shall be investigated for criminal responsibility by the relevant authorities in accordance with the relevant provisions of the Criminal Law.