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:

First, sharing epidemic prevention and health information data across regions without changing the existing local "health code", and adding cross-regional mutual recognition function to the 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 mutual recognition of cross-regional health codes.

Third, in areas where there is no local "health code", the "epidemic prevention information code" of the national 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.