Release no. 1 of this document, then titled “Network Operational Concept”, was approved by the NMB on 21 Nov 2014.
As part of the consultation on Release 2 of this document, NETOPS/13 (21-22 Oct 2015) agreed to change the title to High Level Network Operational Framework. This High Level Network Operational Framework has been approved by the NMB in their 14th meeting on 22 January 2016 (after agreements by NETOPS and NDOP).