This document defines and allocates the set of minimum requirements for the end-to-end operational, safety, performance, and interoperability aspects for implementations of an initial set of IM Operations. The requirements and their initial application are also expected to form the basis for all future ASPA-FIM implementations. Allocation of these requirements is done by this SPR/INTEROP to the necessary domains of the CNS/ATM system, i.e., at aircraft and ground domain level. Revision B of the SPR requirements is needed to reflect changes in the revised OSED for the FIM applications.