The health certificate number has 12 digits, the first 8 digits are the year and date, and the last 4 digits are numbers. Everyone's health certificate is not only coded differently, but also the previous date.
Health certificate refers to the proof of preventive health examination, which proves that the examinee has the health quality to engage in the prescribed business. Health certificate mainly involves six diseases in five industries, which largely protects the health of employees and clients.