| LS | Title | From | To | Approval date |
| ISO/IEC JTC1/SC27-N18109 | LS on ISO/IEC JTC 1/SC 27/WG 4 and WG 5 liaison statement to ITU-T Focus Group on Data Processing and Management to support IoT and Smart Cities & Communities (FG-DPM) | ISO/IEC JTC1/SC27 | FG-DPM; | 2017-11-03 |