for the food production license, see/flfg/2119-18/12/content _ 1389161.htm "Measures for the Administration of Food Circulation License" (Order No.44 of the State Administration for Industry and Commerce), Chapter IV, Modification and Cancellation of License Article 22 The validity period of food circulation license is 3 years.

if a food business operator needs to extend the validity period of a food circulation license, he shall apply to the original licensing authority 31 days before the expiration of the validity period of the food circulation license and issue a new one.

if the license is renewed, the serial number of the renewed Food Circulation License will remain unchanged, but the year of issuance will be filled in according to the actual situation, and the validity period will be recalculated. For catering services, see /WS11/CL1153/46972.html Measures for the Administration of Catering Service License (Order No.71 of the Ministry of Health), Chapter V Management of License Article 29 The validity period of Catering Service License is 3 years. Temporarily engaged in catering service activities, the validity of the "catering service license" shall not exceed 6 months.