Under normal circumstances, the health code needs to be updated every three days in the case of green code, and it can only be extended after at least the health code is boarded in turn within the validity period, otherwise it will be changed to yellow code. However, different regions have different regulations on health codes. Some areas are updated once in a while, and some areas have no time limit and do not need to be updated, as the case may be.
Use of health codes
Unify and simplify information registration channels. Before there were no health regulations, the statistics of residents' health information could only rely on the manpower statistics of communities, companies and schools, which was not only inefficient, but also faced with the dilemma of inconsistent information and mutual distrust.
The appearance of health codes has given a city or even a province a quick and simple way of statistical information, and the unified information format has also laid the foundation for mutual recognition of information in various places.
It is troublesome to speed up the inspection at the checkpoint. Before the health code comes out, residents need to carry proof materials such as identity certificate, community certificate and health certificate with them when going out.
At the same time, the medical examiners at the entrances and exits of residential areas, stations and airports need to carefully check everyone's materials, which is very laborious and inefficient.