Conversation so far:
when did the ce mark become a requirement on new equipment
The CE Mark is defined as the European Union’s mandatory conformity marking for regulating the goods sold within the European Economic Area since 1985.
on what equipment did the ce mark become a requirement
The directives requiring CE marking affect the following product groups: active implantable medical devices (excluding surgical instruments), appliances burning gaseous fuels, cableway installations designed to carry persons, and many more.

Question: where
Self-contained rewrite: where is the CE mark a requirement