Can I travel with the health code of the new application? What's the use of the health code?

1, the health code is generally updated every day. After the first application, if you use it every day, you generally don't need to apply again. As long as you log in, you can display the health code of the day, but if you use it every few days, you may need to apply again.

2. The health code is based on actual data, which can be generated by citizens or people who have returned to work through online declaration and background audit. As an individual entering and leaving electronic certificate locally, the QR code can be declared once, which is universal in the whole city. ? The introduction of health code aims to make the return to work more accurate, scientific and orderly? .