Did you receive a text message saying that 14 automatically changed the green code that day?

Yes, when the demand is met, it will change.

After passing through the high school risk area, or having been with the diagnosed patients in time and space, you will receive such a short message. After nucleic acid detection, the yellow code will automatically turn into green code after 14 days. After giving the yellow code 14 days, the nucleic acid was detected three times in the designated institution in the last 7 days. If the results are all negative, the green code can be turned.

There are two conditions for the yellow code to turn green: first, the family health monitoring reaches 14 days (from the date of code change in Huang Zhi); The other is that the nucleic acid test has been negative for three times in the last seven days. The nucleic acid test here can be done by any qualified institution, including the collective nucleic acid test of units and community organizations. When most people meet these two conditions, the yellow code will automatically become a green code.