China’s new national HIV/AIDS CRIMS began operation on 1 January 2008. This system covers all levels of the public health system, from the local level up through the central level (Figure 1).CRIMS is composed of eight subsystems (Figure 2).These include the existing seven subsystems plus an additional subsystem that houses county level contextual information. In 2008 alone, 45 572 new HIV case cards, over 260 000 case follow-up questionnaires.15 021 new adult ART cards and 307 paediatric ART cards, 81 130 new MMT patient cards and more than 1.7 million voluntary counselling and testing (VCT) visits were entered into the new platform.