Legal basis: Regulations on Hygiene Management in Public Places.
Seventh people who directly serve customers in public places must hold a "health certificate" before they can engage in their own work. Persons suffering from dysentery, typhoid fever, viral hepatitis, active tuberculosis, purulent or exudative skin diseases and other diseases that hinder public health shall not engage in direct customer service before they are cured.
Eleventh health and epidemic prevention institutions shall, according to the needs, set up health supervisors in public places to carry out the tasks assigned by the health and epidemic prevention institutions. Health supervisors in public places shall be issued certificates by the people's governments at the same level.
Health supervisors in public places of health and epidemic prevention institutions of civil aviation, railways, transportation, industrial and mining enterprises shall be issued certificates by their superior competent departments.