The European counterpart to the UL mark is the CE mark. This symbol indicates that a product complies with applicable European directives with regard to safety and the protection of health, the environment and consumers.
The difference, however, is that manufacturers usually simply declare CE compliance on their own, whereas the award of the UL Mark is preceded by independent certification by UL. Thus, a product with the CE symbol may still have a seal of approval such as the UL Mark.
In principle, the UL Mark carries no more legal weight than other trademarks. In this respect, it differs from the CE mark or the Federal Communications Commission Part 15 standard, both of which are required by law.