| LS | Title | From | To | Approval date |
| SG5-LS17 | LS/r on ITU-T Study Group 5 definitions (reply to CCT/103(Rev.1), CCT/101rev4, SCV-LS30, SCV-LS26, SCV-LS21, SCV-LS15, SCV-LS10, SCV-LS16, SCV-LS17, SCV-LS18, SCV-LS19, SCV-LS42) | SG5 | SCV; | 2025-06-12 |
| SG5-LS23 | LS/r on terms and definitions (reply to SCV-LS10) | SG5 | SCV; | 2025-06-12 |
| SCV-LS21 | LS/r on “View of antenna-related definitions” (reply to ITU-R 3J/TEMP/54) | SCV | SG5; ITU-R SG 3; | 2025-03-11 |
| SCV-LS26 | LS on “Comments from the CCT to terms and definitions submitted by ITU-T SG5 contained in Recommendation ITU-T L.1028, L.1310 and L.1410” | SCV | SG5; SG3; SG21; | 2025-03-11 |
| CCT-CCT/103(Rev.1) | LS/r on Definitions: List of published English terms for validation sent to the CCT for comment – “antenna-related terms” (reply to SG5-LS137) | CCT | SG5; | 2025-02-13 |
| SCV-LS10 | LS on terms and definitions developed by ITU-T Study Group 5 (30 January 2025) | SCV | SG5; | 2025-01-30 |
| SCV-LS15 | LS on the definition of the term 'free of charge' from ITU-T Study Group 5 | SCV | SG3; SG5; | 2025-01-30 |
| 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 |
| SCV-LS17 | LS on the definition of the term 'traffic' from ITU-T Study Group 5 | SCV | SG2; SG3; SG5; SG15; | 2025-01-30 |
| SCV-LS18 | LS on the definition of the term 'spark-over voltage' from ITU-T Study Group 5 | SCV | ITU-R WP 1A; SG5; | 2025-01-30 |
| SCV-LS19 | LS on the definitions of the terms from ITU-T Study Group 5 | SCV | ITU-R WP 1A; ITU-R SG 3; SG5; | 2025-01-30 |
| SCV-LS42 | LS on the validation of terms and definitions developed by ITU-T Study Group 5 (17 September meeting) | SCV | SG5; | 2024-09-17 |
| SG5-LS137 | LS on terms contained in ITU-T Study Group 5 draft Recommendations and Supplements | SG5 | SCV; SG2; SG3; SG21; SG11; SG12; SG13; SG15; SG17; SG20; | 2024-09-11 |
