Article 56 governs certificates of conformity issued by NBs (validity max 5 years, may be subject to conditions, suspended/withdrawn/restricted on non-compliance). Certificates are technology-bound and may require periodic surveillance. Article 57 establishes the electronic system on NBs + certificates available through EUDAMED.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.