What is the difference between the CE marking and other markings, and can other markings be affixed on the product if there is a CE marking?

The CE marking is the only marking that indicates conformity to all the essential requirements of the Directives that provide for its affixing.

 A product may bear additional markings provided that they do not have the same significance as the CE marking, that they are not liable to cause confusion with the CE marking and that they do not impair the legibility and visibility of the CE marking.

In this respect, other markings may be used only if they contribute to the improvement of consumer protection and are not covered by harmonisation legislation of the European Union.