| LS | Title | From | To | Approval date |
| SG5-LS36 | LS/r on the ITU Coordination Committee for Terminology (CCT) and to ITU-T Study Groups 5 and 15 (reply to ITU-RWP1A-Document1A/TEMP/32(Rev.1)(edited)) | SG5 | ITU-R WP 1A; SG15; CCT; | 2025-11-06 |
| ITU-R WP 1A-Document 1A/TEMP/32 (Rev.1) (edited) | LS/r to the ITU Coordination Committee for Terminology (CCT) and to ITU-T Study Groups 5 and 15 | ITU-R WP 1A | SG5; SG15; CCT; | 2025-06-23 |
| SCV-LS16 | LS on the definitions of the terms 'Out of band (PLC)' and 'PLC operating bandwidth' from ITU-T Study Group 5 | SCV | ITU-R WP 1A; SG5; SG15; | 2025-01-30 |