Within China, the State Council mandates that all maps of China use the GCJ-02 coordinate system, which is offset from the WGS-84 system used in most of the world. google.cn/maps (formerly Google Ditu) uses the GCJ-02 system for both its street maps[111] and satellite imagery.[112] google.com/maps also uses GCJ-02 data for the street map, but uses WGS-84 coordinates for satellite imagery,[113] causing the so-called China GPS shift problem.