The letters CE in a defined geometric form, declaring conformity in the EEA.
The CE mark is the manufacturer's own declaration that a product meets the EU requirements applying to it. It is not a safety certification and not a mark of quality, and it is not awarded by anybody.
Affixed by the manufacturer to declare that a product complies with the EU legislation applicable to it, which is a legal requirement for placing many product categories on the market in the European Economic Area.
European Economic Area · Contexts: Packaging
Widely read as a safety certification issued by an authority. It is neither: for most product categories the manufacturer applies it on its own assessment, and no body grants it.
Contexts: Packaging
The letters C and E drawn as arcs of the same circle, the E carrying a shortened middle arm, set close together with a fixed gap.
UKCA replaced CE for the Great Britain market after EU exit and does the same job under a different jurisdiction.