Passengers who arrive in Beijing by train or stop in Beijing need to fill in the commitment letter on the spot, sign it for confirmation, and show the negative certificate of 48-hour nucleic acid test.
The core content of the letter of commitment is to truthfully reflect your health status, determine whether you have been confirmed as a confirmed or suspected case in COVID-19 by a medical institution, whether you have used antipyretic or cold medicine within 72 hours, or taken other cooling measures, and make explanations and commitments on these.