Nodes
Article 5
1. A node in one Member State shall be able to connect with nodes of other Member States. 2. The nodes shall be able to distinguish between public sector bodies and other relying parties through technical means. 3. A Member State implementation of the technical requirements set out in this Regulation shall not impose disproportionate technical requirements and costs on other Member States in order for them to interoperate with the implementation adopted by the first Member State.