According to the provisions of No.47 and No.48 of COVID-19 Prevention and Control Headquarters in Hohhot. Anyone who goes in and out of Hohhot. You must scan the code "Qingcheng Police Code" and show your health code. And hold the nucleic acid test report within 48 hours. The report must be negative. If there are no special circumstances, try not to go in and out of Hohhot. If it's really necessary to get in and out. The above provisions must be observed. From now on, anyone who comes from Hohhot (returns to Hohhot) must check the "Qingcheng alarm number" and provide a 48-hour negative certificate of nucleic acid test before entering Hohhot. If it is impossible to provide a 48-hour negative certificate of nucleic acid testing, it is necessary to report to the territory at the first market access place, and the corresponding counties and districts will implement nucleic acid testing through closed-loop management. After the test result is negative, it can flow in sequence.