1. Basic information: briefly summarize the basic information of this unit, including name, time of establishment, legal representative, number of employees, business scope, teaching staff (full-time and part-time), number of trainings organized in recent three years, passing rate of examinations, construction of test centers (examination institutions), etc. 2. Self-inspection of existing problems: according to the category of the unit (safety production training institutions, test sites and examination institutions, production and business units), focusing on but not limited to the problems listed in the "key rectification contents" of this plan, check the existing problems item by item; 3. Problem rectification: According to the list of problems found in self-inspection, list the rectification measures that have been taken or will be taken item by item, including specific rectification contents, rectification basis, rectification results (or rectification acceptance conditions to be achieved), rectification time limit, specific person in charge, etc. 4. Countermeasures for continuous improvement: On the basis of self-examination and rectification of the actual situation of the unit, according to the requirements of relevant laws, regulations and standards, it is proposed to list the continuous improvement measures of the unit to ensure the quality of teaching and training and maintain the fairness and justice of the examination.