| LS | Title | From | To | Approval date |
| SG13-LS212 | LS/r on lead study group concept and coordination mechanisms (TSAG-LS21) | SG13 | TSAG; SG2; SG3; SG5; SG21; SG11; SG12; SG15; SG17; SG20; | 2026-07-02 |
| TSAG-LS21 | LS on lead study group concept and coordination mechanisms | TSAG | SG2; SG3; SG5; SG21; SG11; SG12; SG13; SG15; SG17; SG20; | 2026-01-30 |