Employees of production and business units must receive education and training in production safety, and those who have not received education and training in production safety may not work at their posts. The principal responsible persons and safety management personnel of production and business units must have corresponding knowledge and management ability of safety production, and the principal responsible persons and safety management personnel of dangerous goods production and business units and mines and construction units must pass the examination before taking up their posts. Special operators of production and business units must receive special training and obtain the qualification certificate for special operations before they can take up their posts. ?