The "CE" marking is a safety certification mark that is considered as a passport for manufacturers to open and enter the European market. CE STANDS FOR CONFORMITE EUROPEENNE. In the EU market, the "CE" mark is a compulsory certification mark, whether it is a product produced by an enterprise within the EU, or a product produced in other countries, in order to circulate freely in the EU market, it is necessary to affix the "CE" mark to indicate that the product meets the basic requirements of the EU "New Methods for Technical Coordination and Standardization" directive. This is a mandatory requirement for products under EU law.