Ningbo ISO4500 1 certification process: 1. Understanding and training: Understand the requirements of ISO4500 1 standard, attend relevant training courses, and enhance the understanding within the organization. 2. Make a plan: define the goal, time and cost of certification, and choose a suitable certification institution. 3. Establish system documents: prepare occupational health and safety management manuals, procedure documents and other relevant documents to ensure compliance with ISO4500 1 standard. 4. Internal implementation: conduct actual operations according to the management manual, evaluate the risks of the company, and ensure that safety measures are in place. 5. Internal audit and correction: organize internal audit and correction of nonconformities to ensure the effectiveness of the management system. 6. Certification audit: communicate with the certification body, determine the audit time, and accept the audit of the audit body. 7. Rectification and re-evaluation: rectify the problems found in the audit, submit the rectification evidence and wait for the approval of the audit. 8. Certification: After passing the audit, the certificate of ISO4500 1 Occupational Health and Safety Management System with a validity period of 3 years was obtained. About the cost: the certification fee will vary according to the scale, location, certification body and other factors of the enterprise. Please consult the certification body for detailed quotation for specific expenses. Materials to be submitted: 1. Copy of business license of enterprise as a legal person. Organization code certificate 3. Handbook of Occupational Health and Safety Management IV. Procedures, work instructions and other related documents. Records of internal audit and management review. The reference information of the rectification report and relevant evidence is only a general description, and the specific process, expenses and required materials may be different due to the actual situation of certification bodies and enterprises, so please take the actual situation as the standard.