"3C" certification from May 1, 2002 (later postponed to August 1) since the full implementation of the original product safety certification and import safety and quality licensing system was abolished at the same time. The current mandatory product certification system has been announced, "Compulsory Product Certification Regulations", "Compulsory Product Certification Marks", "the first implementation of mandatory product certification of the product catalog" and "the implementation of mandatory product certification issues related to the notice. The first batch of products included in the mandatory certification catalog, including wires and cables, switches, low-voltage appliances, power tools, household appliances, audio and video equipment, information equipment, telecommunication terminals, motor vehicles, medical equipment, safety equipment and so on.