1. adjust the management mode of high-risk areas: those who live in high-risk areas for 7 days will be observed at home for 5 days, and their nucleic acids will be detected on 1, 2, 3 and 5 days. The management period starts from leaving the risk area.
2. Adjust the management measures for low-risk areas and counties (cities, districts and banners) where no control personnel report COVID-19 infected persons within 7 days (municipalities directly under the Central Government will adjust counties (cities, districts and banners) to towns (streets)). For those who have relevant residence history within 7 days, the verification system of negative nucleic acid certificate shall be implemented within 48 hours before arrival in Tianjin, and two inspections shall be implemented within 3 days after arrival in Tianjin (the first inspection shall be conducted on the ground in principle, and the second nucleic acid inspection shall be conducted within 6 hours on the third day of arrival in Tianjin at the latest).
3. Adjust the measures for the management of foreign (returned) Tianjin personnel, and relevant personnel will take the initiative to report. Those who plan to come to Tianjin (return to Tianjin) will enter Tianjin in an orderly manner within 48 hours on the premise of completing the registration with the negative certificate of nucleic acid test and the green code of Tianjin health code. After arriving in Tianjin, in principle, landing inspection should be carried out at airports, railway stations, long-distance passenger stations and highway intersections with nucleic acid sampling points. Nucleic acid detection should be carried out within 6 hours after arrival in Tianjin at the latest, and the second nucleic acid detection should be carried out on the third day after arrival in Tianjin. There is no need to go out before the negative results are released.