| LS | Title | From | To | Approval date |
| SG2-LS158 | LS/r on synchronization of Y.DNI-fr:“Framework and Requirements of Decentralized Trustworthy Network Infrastructure” (reply to SG13-LS156) | SG2 | SG13; | 2020-06-05 |
| SG13-LS156 | LS/r on synchronization of Y.DNI-fr:"Framework and Requirements of Decentralized Trustworthy Network Infrastructure" (reply to SG2-LS128) | SG13 | SG2; | 2020-03-13 |
| SG2-LS128 | LS/r on new work items on requirements and information model for management of blockchain systems (reply to FG DLT-LS16, FG DLT-LS17, SG5-LS105, TSAG-LS24, SG13-LS113) | SG2 | SG13; SG5; TSAG; SG20; ISO TC 307; IEEE Standards Association; | 2019-12-13 |
| TSAG-LS24 | LS on results of FG-DLT | TSAG | SG2; SG3; SG5; SG9; SG11; SG12; SG13; SG15; SG16; SG17; SG20; | 2019-09-27 |
| FG DLT-LS17 | LS on final FG DLT deliverables | FG DLT | ISO/IEC JTC1/SC29/WG1; SG2; SG3; SG5; SG9; SG11; SG12; SG13; SG15; SG16; SG17; SG20; ISO TC 307; FG ML5G; FG NET2030; FG-VM; FG-AI4H; ETSI ISG PDL; CEN/CENELEC FG BDLT; FG-AI4EE; | 2019-08-01 |
| SG13-LS113 | LS on ITU-T draft Recommendation Y.DNI-fr on Decentralized Trustworthy Network Infrastructure [to ITU-T SG2 and ITU-T SG17] | SG13 | SG2; SG17; | 2019-06-28 |
| SG5-LS105 | LS/r on FG DLT deliverables for review and comments (reply to FGDLT-LS16) | SG5 | FG DLT; ISO/IEC JTC1/SC29/WG1; ISO TC 68; SG2; SG3; SG9; SG11; SG12; SG13; SG15; SG16; SG17; SG20; FG-DPM; ISO TC 307; FG DFC; FG ML5G; FG NET2030; FG-VM; FG-AI4H; ETSI ISG PDL; ISO TC 309; CEN/CENELEC FG BDLT; | 2019-05-22 |
| FG DLT-LS16 | LS on FG DLT deliverables for review and comments (to ITU-T Study Groups and ITU-T Focus Groups) | FG DLT | SG2; SG3; SG5; SG9; SG11; SG12; SG13; SG15; SG16; SG17; SG20; FG-DPM; FG DFC; FG ML5G; FG NET2030; FG-VM; FG-AI4H; ISO/IEC JTC1/SC29/WG1; ISO TC 68; ISO TC 307; ETSI ISG PDL; ISO TC 309; CEN/CENELEC FG BDLT; | 2019-04-04 |
