When arriving at Xinzheng Airport, East High-speed Railway Station, Railway Station, coach station and other transportation hubs, entry-exit personnel outside the province must hold the green code of health code and check the negative certificate of 48-hour nucleic acid test. Personnel without valid certificates should carry out nucleic acid detection at temporary nucleic acid detection points set up in various transportation hubs. After sampling, they can enter Zhengzhou on the premise of personal protection. Before the results are clear, they are not allowed to take public transport, participate in gathering activities or go to crowded places, and can only move normally after the nucleic acid test is negative. When mainlanders check into hotels or participate in mass activities, they must hold the green code of health code and check the negative certificate of nucleic acid test for 48 hours.