| LS | Title | From | To | Approval date |
| ITU-D Q6/2-SG2RGQ/101 | LS/r on ITU-D SG2 Q6/2 work | ITU-D Q6/2 | SG5; | 2018-10-10 |
| SG5-LS84 | LS/r on Question 6/2 work for the 2018-2020 study period (reply to ITU-D SG2-2/115-E) | SG5 | ITU-D Q6/2; | 2018-09-21 |
| ITU-D SG2-Document 2/115 | LS/r on Question 6/2 work for the 2018-2020 study period (reply to ITU-T SG5-LS1, SG5-LS22, SG5-LS24, SG5-LS27, SG5-LS50) [from ITU-D Study Group 2] | ITU-D SG 2 | SG5; | 2018-05-11 |
| SG5-LS24 | LS on Operational Plan for Implementation of WTSA-16 Resolutions 72 and 73 (Hammamet, 2016), and Resolution 79 (Dubai, 2012) | SG5 | ITU-R SG 1; ITU-R SG 5; ITU-R SG 6; ITU-R SG 3; ITU-R SG 4; ITU-R SG 7; ITU-D SG 2; ITU-D SG 1; SG2; SG3; SG9; SG11; SG12; SG13; SG15; SG16; SG17; TSAG; SG20; | 2017-05-24 |
| SG5-LS27 | LS/r on ITU inter-Sector coordination (reply to TSAG - LS 1 –E) | SG5 | ITU-R SG 1; ITU-R SG 5; ITU-R SG 6; ITU-R SG 3; ITU-R SG 4; ITU-R SG 7; ITU-D SG 2; ITU-D SG 1; ITU-D TDAG; ITU-R RAG; ISCT; SG2; SG3; SG9; SG11; SG12; SG13; SG15; SG16; SG17; TSAG; SG20; | 2017-05-24 |
| SG5-LS22 | LS on ITU-T Study Group 5 lead study group activities. | SG5 | ITU-R SG 1; ITU-R SG 5; ITU-R SG 6; ITU-R SG 3; ITU-R SG 4; ITU-R SG 7; ITU-D SG 2; ITU-D SG 1; WMO; IEC CISPR SC I; IEC TC 108; ETSI TC EE; ETSI TC ATTM TM6; IEC TC 111; IEC TC 106; CENELEC TC 210; IEEE P1823/UPAMD; ECMA TC 38; ISO/IEC JTC1/SC39; UNFCCC; CEN/CENELEC/ETSI CG GDC; CEN-CENELEC Eco-CG; IEC TC 100 TA14; WHO; SG2; SG3; SG9; SG11; SG12; SG13; SG15; SG16; SG17; SG20; IEEE ICES; IEC TC 81; IEC ACEC; IEC SC 77C; IEC SC 37B; CENELEC TC 106X; CENELEC TC 215; CENELEC TC 81X; | 2017-05-24 |
| SG5-LS1 | LS/r on Q8/2 draft report for the 2014-2017 study period (reply to LS ITU-D Q8/2 - 2/394-E –E) | SG5 | ITU-D SG 2; | 2017-05-24 |
| TSAG-LS1 | LS on ITU inter-Sector coordination [to ISCT, TDAG, ITU-D SGs, RAG, ITU-R SGs, ITU-T SGs] | TSAG | ITU-R SG 1; ITU-R SG 5; ITU-R SG 6; ITU-R SG 3; ITU-R SG 4; ITU-R SG 7; ITU-D SG 2; ITU-D SG 1; ITU-R SG 8; ITU-R SG 9; ITU-R RAG; ITU-D TDAG; ISCT; SG2; SG3; SG5; SG9; SG11; SG12; SG13; SG15; SG16; SG17; SG20; | 2017-05-04 |
| ITU-D Q8/2-Document 2/394 | LS on Q8/2 draft report for the 2014-2017 study period | ITU-D Q8/2 | SG5; | 2016-09-28 |
