| LS | Title | From | To | Approval date |
| SG13-LS186 | LS/r on work items ITU-T Y.NGNe-CEE “Capability exposure enhancement in next generation network evolution (NGNe)” and Y.CPN-exp-reqts “Requirements of capability exposure in CPN” (SG2-LS96) | SG13 | SG2; | 2024-03-15 |
| SG2-LS96 | LS/r on initiation of new work item ITU-T Y.NGNe-CEE “Capability exposure enhancement in next generation network evolution (NGNe)” and Y.CPN-exp-reqts “Requirements of capability exposure in CPN” (Reply to SG13-LS83, SG13-LS120) | SG2 | SG13; | 2023-11-17 |
| SG13-LS120 | LS on initiation of new work item ITU-T Y.CPN-exp-reqts “Requirements of capability exposure in CPN” | SG13 | SG2; SG11; SG17; | 2023-11-03 |
| SG13-LS83 | LS on initiation of new work item ITU-T Y.NGNe-CEE “Capability exposure enhancement in next generation network evolution (NGNe)” | SG13 | 3GPP TSG SA6; SG2; SG11; | 2023-03-24 |
