the general situation of health certificates is different according to the situation in different provinces. Generally speaking, health certificates can be used within provinces, but not across provinces. It depends on local regulations. Even in the same area, the health certificate has a fixed number of years, generally valid for one year, and it needs to be re-examined before it expires.

according to the relevant provisions of the food hygiene law of the people's Republic of China and the regulations on hygiene management of public places, food production and marketing personnel and employees in public places must pass the health check-up at the health and epidemic prevention station, obtain a health certificate, and be trained in hygiene knowledge before taking up their posts. To apply for a health certificate, you should go to the local epidemic prevention station. Generally, the items of physical examination are: ultrasonic examination, electrocardiogram, fluoroscopy, vision, liver function, blood pressure, urine test, etc., all of which are preventive examinations of some common infectious diseases.