| LS | Title | From | To | Approval date |
| SG9-LS22 | LS/r on Recommendation ITU-R SM.2093-0 (ITU-R SG1-LS9) [to ITU-R SG1, ITU-T SG5] | SG9 | ITU-R SG 1; SG5; | 2017-05-31 |
| SG5-LS176 | LS/r on Recommendation ITU-R SM.2093-0 (reply ITU-R SG 1 - LS 9 -E) | SG5 | ITU-R SG 1; | 2016-10-14 |
| ITU-R SG1-LS9 | LS on Recommendation ITU-R SM.2093-0 | ITU-R SG 1 | SG5; SG9; | 2016-09-30 |