Legal analysis: According to the Measures for the Administration of Catering Service License, the food safety business license is valid for 3 years and needs to be renewed upon expiration.

Legal basis: Article 29 of the Measures for the Administration of Catering Service Licensing. The validity period of the catering service license is 3 years. Temporarily engaged in catering service activities, the validity of the "catering service license" shall not exceed 6 months.