Legal analysis: Under normal circumstances, the health certificate is changed once a year. There are two kinds of health certificates: one is general health certificate. Then the other is a food health certificate, which is needed by people in the catering industry. So a person can apply for two different types of health certificates. The health certificate is valid for one year, and it will be invalid after one year, so the holder is required to have a physical examination once a year. 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.
Legal basis: Article 45 of the Food Safety Law of People's Republic of China (PRC), food producers and business operators shall establish and implement the health management system for employees. Persons suffering from diseases that hinder food safety as stipulated by the administrative department of health of the State Council shall not engage in direct contact with imported food. Food production and marketing personnel engaged in direct contact with imported food shall undergo annual health examination and obtain health certificates before taking up their posts.