Legal analysis: Yes, health certificates can generally be used across cities, and can be used across cities in the same province. The content of health certificate mainly involves the inspection of infectious diseases to ensure the health and safety of service industry. Personnel engaged in toxic, harmful and radioactive operations do not belong to the service industry and do not need to hold health certificates at all, so it cannot be said that health certificates are an effective way to understand physical condition and ensure health and safety.
Legal basis: "Measures for the Administration of Preventive Health Examination" Article 3 Preventive health examination shall be managed by the health administrative department of the provincial government, and the health administrative departments at all levels shall be responsible for the preventive health examination within their respective jurisdictions.