Health codes are based on real data and can be generated by citizens or people who have returned to work through online declaration and background audit. As an individual, he can obtain an electronic certificate locally, and realize a declaration, which is universal in the whole city.
In order to promote the mutual recognition of "health code" in different places, the national comprehensive government service platform provides three ways to realize cross-provincial mutual recognition and sharing. The first is to add the function of cross-regional mutual recognition to the local "health code" through the sharing of cross-regional epidemic prevention and health information data without changing the existing local "health code".
Second, the local "health code" is connected with the national comprehensive government service platform "epidemic prevention information code", and the national comprehensive government service platform "epidemic prevention information code" is used as the intermediary to realize the mutual recognition of cross-regional "health code".
Thirdly, in areas where there is no local "health code", the "epidemic prevention information code" of the national comprehensive government service platform can be directly adopted, and at the same time, combined with local epidemic prevention and health-related information, cross-regional interoperability and mutual recognition can be realized.