| LS | Title | From | To | Approval date |
| SG5-LS61 | LS/r on the development of ITU-T Standards Success Stories (reply to TSAG-LS5 and TSAG-LS14) | SG5 | TSAG; | 2025-12-22 |
| SG12-LS20 | LS/r on ITU-T Standards Success Stories (reply to TSAG-LS5 and TSAG-LS14) [to TSAG] | SG12 | TSAG; | 2025-12-12 |
| SG17-LS66 | LS/r on SG17 inputs on the development of ITU-T Standards Success Stories (reply to TSAG-LS5 and TSAG-LS14) | SG17 | SG2; SG3; SG5; SG21; SG11; SG12; SG13; SG15; TSAG; SG20; | 2025-12-11 |
| SG21-LS163 | LS/r on the development of ITU-T Standards Success Stories (TSAG-LS5) | SG21 | TSAG; | 2025-12-02 |
| SG11-LS72 | LS/r on the development of ITU-T Standards Success Stories (reply to TSAG-LS5 and TSAG-LS14) | SG11 | TSAG; | 2025-11-26 |
| SG3-LS14 | LS/r on ITU-T Standards Success Stories (reply to TSAG-LS5 and TSAG-LS14) | SG3 | TSAG; | 2025-11-07 |
| SG13-LS148 | LS/r on ITU-T SG13 Standards Success Stories (TSAG-LS5 and TSAG-LS14) | SG13 | TSAG; | 2025-11-06 |
| SG15-LS84 | LS/r to TSAG on the development of ITU-T Standards Success Stories (reply to TSAG-LS5 and TSAG-LS14) | SG15 | TSAG; | 2025-10-24 |
| SG20-LS110 | LS/r on the development of ITU-T Standards Success Stories (reply to TSAG-LS5) | SG20 | TSAG; | 2025-09-25 |
| TSAG-LS14 | LS on Proposed template for ITU-T Standards Success Stories | TSAG | SG2; SG3; SG5; SG21; SG11; SG12; SG13; SG15; SG17; SG20; | 2025-09-16 |
| SG13-LS100 | LS/r on ITU-T SG13 Standards Success Stories (TSAG-LS5) | SG13 | TSAG; | 2025-08-29 |
| TSAG-LS5 | LS on the development of ITU-T Standards Success Stories | TSAG | SG2; SG3; SG5; SG21; SG11; SG12; SG13; SG15; SG17; SG20; | 2025-05-30 |
| TSAG-LS4 | LS on lead study group concept | TSAG | SG2; SG3; SG5; SG21; SG11; SG12; SG13; SG15; SG17; SG20; | 2025-05-30 |
