China has restrictions on geographic information data and uses a data blurring algorithm that adds random offsets to latitude and longitude data for national security purposes. According to local authorities, from July 28, 2020, travelers from Urumqi and Dalian are required to provide a certificate of a negative nucleic acid test result issued no more than 7 days prior to arrival or be able to show a Green Health Code with a negative nucleic acid test result, otherwise they will be tested at designated medical facilities immediately. The above information is for reference only, please check all the local regulations in detail before travel to avoid any inconvenience.