This is the publicity system board for quantitative supervision and management of food safety issued by the State Food and Drug Administration. Law enforcement officers will score items one by one according to the actual situation of the store, and grade according to the scores. * * * There are four grades of ABCD, of which Grade A is the best, and the frequency of supervision should be reduced; Grade B is average and should be supervised normally; Grade C is poor and the relative conditions are poor, so the frequency of supervision should be increased; Grade D is unqualified and should be closed for rectification. Therefore, customers can judge the hygiene of the store according to the billboard. However, because food safety is a dynamic management, this bulletin board is also evaluated once a year, not for life.