China Compulsory Certificate
The China Compulsory Certificate mark (中国强制性产品认证, lit. 'China mandatory product certification'), commonly known as CCC Mark (三C认证), is a compulsory safety mark for many products imported, sold or used in the Chinese market. It was implemented on May 1, 2002, and became fully effective on August 1, 2003.
Source: Wikipedia — China Compulsory Certificate (CC BY-SA 4.0)