The streets in Zhifu District are tired from work. According to relevant data, in order to further effectively control and reduce the risk of epidemic spread, and strive to optimize the business environment, in view of the high epidemic risk of cold chain and express delivery industries, Qishan Sub-district Service Commissioner and community grid staff in Zhifu District of Yantai continue to provide epidemic prevention and control guidance services to the cold chain and express delivery industries within their jurisdiction, guide enterprises and merchants to actively implement the main responsibility of epidemic prevention and control, and earnestly do a good job in epidemic prevention and control of cold chain catering enterprises and express delivery industries within their jurisdiction. For catering enterprises operating imported cold chain products within their jurisdiction, Qishan Sub-district Service Commissioner and community grid staff provide guidance on enterprise epidemic prevention measures, compact the responsibilities related to epidemic prevention and control and safe production, guide operators to download Shandong cold chain epidemic prevention and control system, earnestly fulfill the main responsibility of food safety, standardize business practices, and strictly implement the incoming inspection and record system. Especially for imported food, it is necessary to obtain the certification documents and negative certificates of goods, personnel and environmental nucleic acid detection through three inspections to ensure that consumers can buy and eat with confidence.