Does the tail number of the takeaway health certificate represent normal?

The tail number of the takeaway health certificate represents normal. According to the relevant information, the health certificate number of the takeaway is filled in according to a series of numbers on the health certificate. That string of numbers was compiled by the hospital that issued the health certificate. The health certificate number has 12 digits, the first 8 digits are the year and date, and the last 4 digits are numbers.