The validity period and review time limit of Quanzhou sanitation license are as follows: the validity period of food hygiene license is 3 years (the validity period of small certificate and on-site canteen certificate is one year), and it is reviewed once a year; The validity period of the Hygiene Permit for Public Places is 3 years, and it is reviewed once every two years; "Drinking Water Hygiene Permit" is valid for 4 years and reviewed once a year; The hygiene license for dry cleaners is valid for 2 years and reviewed once a year; "Health Permit for Medical Institutions" is valid for 5 years and reviewed once a year; The work permit of X-ray device is valid for 3 years, and is reviewed once every 137.