| LS | Title | From | To | Approval date |
| SG11-LS151 | LS on the determination of draft new Recommendation ITU-T Q.3070 (ex Q.TSCA) “Requirements for issuing End-Entity and Certification Authority public key certificates for enabling trustable signalling interconnection between network entities” | SG11 | SG2; SG17; TSAG; | 2026-07-22 |