Associated with product safety, the CE mark is attached to certain products in accordance with EU legislation. By attaching the CE mark, the manufacturer declares that the product in question complies with the applicable European directives. However, it is not possible to conclude from a CE mark alone whether independent bodies have checked the product's compliance with the directives. A four-digit number appearing after the CE mark indicates that a Notified Body was involved in the conformity assessment procedure. The CE mark is not a seal of quality.