The goals of the EUROCAE Report will be to propose and justify a minimum set of interfaces for Network Remote Identification data from USSP to USSP inside a U-space, to explain what are the identified issues which cannot be addressed by ASTM F3411-22a specified exchange protocol between USSPs and to provide a technical recommendation about the exchange mechanisms, which could be alternatively used by the industry, and submitted to the EASA, while explaining the potential interoperability issues with USSPs implementing the ASTM F3411-22a protocol.