The word "commuting" in Beijing health code refers to the person who holds the green code of "commuting" and can show it to the staff of railway and highway checkpoints. It has the same effect as negative paper nucleic acid certificate and is more convenient to pass. For those who are already in the commuter database and whose negative nucleic acid test certificate has been uploaded to the national or municipal nucleic acid test database within 14 days, "Beijing Health Bao" gives them the green code of "commuting". It should be noted that those who get the green code of "commuting" need to ensure that they have a nucleic acid test every 14 days. For the case that the "commuting green code" has not been obtained, the relevant person in charge of the Beijing Economic and Information Bureau introduced that in one case, people who are not in the commuting database should fulfill their personal epidemic prevention obligations in accordance with the latest Beijing entry (exit) policy. Another case is the person in the commuter database, but there is no valid negative record of nucleic acid for 14 days in the national or Beijing nucleic acid detection database. If you don't get the green code of "commuting" for the time being, please conduct regular nucleic acid testing according to the requirements of epidemic prevention policy.