The Food Hygiene Law clearly stipulates that the health certificate is valid for one year. After the expiration, the old certificate is worthless. Just like not having a health certificate, you must get a new one. If the health certificate expires, the health administrative department of the local people's government at or above the county level shall order it to make corrections within a time limit, give a warning and impose a fine of not less than 5,000 yuan in 500 yuan; If no correction is made within the time limit, a fine of not less than 5,000 yuan but not more than 15,000 yuan shall be imposed. Article 38 of the Detailed Rules for the Implementation of the Regulations on Hygiene Management in Public Places.

Legal objectivity:

Detailed Rules for the Implementation of Regulations on Hygiene Management in Public Places Article 38 Where a public place operator arranges employees who have not obtained valid health certificates to directly serve customers, the health and family planning administrative department of the local people's government at or above the county level shall order them to make corrections within a time limit, give them a warning and impose a fine of not less than 5,000 yuan in 500 yuan; If no correction is made within the time limit, a fine of not less than 5,000 yuan but not more than 15,000 yuan shall be imposed.