Where can I find the requirements of what should be in an EU Declaration of Conformity under MDR 2017/745 or IVDR 2017/746?

The EU Declaration of Conformity is a legal document where the manufacturer declares that a medical device complies with the requirements of MDR 2017/745 or IVDR 2017/746. This is required for all medical devices regardless of whether a notified body is involved in the conformity assessment.