IECEE CB electrical product safety system is the mutual recognition of test reports of the first truly international system. Various national certification body (NCB) between the multilateral agreement, manufacturers can be NCB with a CB test certificate issued by the CB access to the system other members of the national certification. 

CB system based on international IEC standard. If some members of the national standards can not be fully in line with the IEC standards, but also allow the existence of differences between countries, but to other members of the public. CB system, the use of CB test certificate to prove the product samples have successfully passed the appropriate tests, and in accordance with the relevant requirements of the IEC and the member countries. 

CB system, the main goal is to promote international trade, which is a means to promote the adoption of national standards with international standards, product certification, as well as coordination bodies, which manufacturers closer to the ideal of "one test, the application of multiple".