No check. According to the official website of the epidemic notification no longer check the nucleic acid test negative certificate, no longer need to register the information in real name; cancel the transportation station, port terminal, high-speed checkpoints and other places mandatory nucleic acid test "landing check" requirements. Leling, Dezhou City, Shandong Province, under the jurisdiction of the county-level city, is located in Lu and Hebei provinces, four cities (Dezhou - Binzhou - Cangzhou - Jinan) junction; part of the North China Plain.