| LS | Title | From | To | Approval date |
| SCV-LS111 | LS/r on terms and definitions developed by ITU-T Study Group 21, incorporating editorial suggestions from the CCT (reply to ITU-T SG21-LS164) | SCV | SG21; | 2026-04-23 |
| SG21-LS164 | LS on new terms and definitions produced in SG21 | SG21 | SCV; SG2; SG3; SG5; SG11; SG12; SG13; SG15; SG17; SG20; | 2025-12-02 |