To apply for a health certificate, it shall be handled in the city (district) or county (CDC) where you live. Because only cities (districts) and counties (CDC) have the right to apply for health certificates. Other institutions, departments and hospitals have no right to apply for health certificates. Even if it is processed, it is invalid. At most, it is for internal use of the unit. (If you only apply for physical examination and health certificate, you can generally apply for physical examination in the hospital).