ITU's 160 anniversary

Connecting the world and beyond

Executive Summary

​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​Executive Summary of the ​ITU-T Study Group 5 Meeting
 “Environment, climate action, circular economy and electromagnetic fields” 

(Geneva, 29 October - 6 November 2025)​​


The second meeting of ITU-T Study Group 5 “Environment, climate action, circular economy and electromagnetic fields” in the 2025–2028 study period, convened by TSB Collective letter 2​, took place in Geneva, from 29 October to 6 November 2025. 

The ITU-T Study Group 5 meeting was chaired by Mr Dominique Würges (France), Chair of ITU-T Study Group 5, and supported onsite by the following Vice-Chairs: Shuguang Qi (China), Derrick Khamali (Kenya), William Daniel Mnyippembe (Tanzania), Helen Nakiguli (Uganda), Beniamino Gorini (Finland), Daniel Dianat (Sweden), Rafia Barkat (Algeria), Fatima Alouane (Morocco (Kingdom of)), and online by Khaled Al Saleem (Kuwait), Byung Chan Kim (Korea (Republic of)) and Neha Upadhyay (India). Additionally, the Chair counted on the support of the Working Party Chair and Vice-Chairs: Paolo Gemma (China), Zhang Xia (China), Shi Ying (China), Jean-Manuel Canet (France) and Minako Hara (Japan). 

Remote participation was provided for all sessions. 

Statistics​​

Main discussions and results​
At its meeting held in Geneva from 29 October to 6 November 2025, ITU-T Study Group 5 achieved the following outcomes:

Major accomplishments​
Contributions

The full list of Contributions can be found in TD529. ​

Approved Recommendations by ITU-T Study Group 5 (according to A.5 §5​) 
IT​​U-T Rec. Num​​ber
Title
Question TD
None
  


Recommendations Consented by SG5 for Last Call (AAP - Recommendation A.8)​ 
​The following table provides a summary of the Recommendations consented and Supplements agreed during the meeting:

​​
​WP1/5
WP2/5
WP3/5
​Total
​Revised Recommendations
​4
1​
1​​6​
​New Recommendations
2​5​5​12​
​Supplements
​1
None​None​1​

​The detailed information is presented in the tables below. 

Recommendations Consented by SG5 for Last Call (AAP - Recommendation A.8)​ 

​​Note: Deadline to submit last call comments for the Recommendations under the AAP process is 13 December 2025. More information is available here

R​evised Recommendations

Recommendation number

Title

Q

TD

A.5 justification
K.58
EMC, resistibility and safety requirements and guidance for determining responsibility under co-located information and communication technology installations4/5 TD674
N/A
K.59
Electromagnetic compatibility, resistibility and safety requirements and procedures for connection to unbundled cables
4/5 TD671
N/A
K.63
Maintaining the suitability of production telecommunications equipment to its intended electromagnetic environment
4/5 TD670
N/A
K.127
Immunity requirements for telecommunication equipment in close proximity use of wireless devices
4/5 TD672
N/A
L.1210
(jointly with ETSI TC EE)
Sustainable power-feeding solutions for 5G networks
6/5 TD660-R1
TD705
L.1450
Methodologies for the assessment of the environmental impact of the information and communication technology sector
9/5 TD778
N/A


 New Recommendations


Recommendation number

Work item or provisional name​​

​Title

Q

TD

A.5 justification
K.160
K.devices
RF-EMF exposure assessment of wireless communication devices operating close to the human body
3/5
TD693-R2​
TD818
K.159
K.plc.emc
Electromagnetic compatibility requirements and measurement methods for outdoor equipment and installation using power line communication
4/5
TD750-R1
TD800​
​L.1341
L.EEIoT
Functional Requirements for Energy Efficiency for Intelligent Internet of Things Platform
6/5
TD697-R1
N/A
​L.1322
L.thermal_DC
Multi-level metrics for thermal environment and thermal performance of Data Centre6/5 TD707-R1
N/A
​L.1308
L.low_DC
Guidelines for the implementation of low carbon data centres to climate change mitigation and adaptation
6/5
TD714-R1
N/A
L.1211
L.PV_base station
Smart controlling methods for photovoltaic system installed in base station site
6/5
TD710-R1
N/A
L.1041
L.Env.TSPCResource saving, e-waste reduction and energy saving system methodology using twisted single pair cable7/5 TD762
N/A
L.1411
L.SimplifiedLCA
(jointly with ETSI TC EE)
Guidance on simplified life cycle assessments of Information and Communication Technologies
9/5
TD737-R3
N/A
​L.1801
L.EnvAI
(jointly with ETSI TC EE)
Guidelines for Assessing the Environmental Impact of Artificial Intelligence systems
9/5 TD713-R2
N/A
​L.1421

L.GHGemissions_BSMethodologies for accounting Greenhouse Gas Emissions of Base Station Sites
9/5 TD751
N/A
​​L.1520


L.NZ_Indicator & BP​Enablement indicator of information and communication technologies to other sectors and best practices to achieve Net Zero goal​​11/5
​TD734-R2
N/A
L.1385​

L.SE_MI​​Smart Energy Solutions for Manufacturing Industry
11/5​ TD675-R3​N/A​

Agreed informative texts​

Work item or
provisi​onal name

Title

Question

TD

Document
number
K.Suppl.25
Long reach single twisted-pair Ethernet resistibility testing
2/5
TD780​
K.Suppl.25

 

New Work Items
Work item
Title Question TD
Rev. K.47
Protection of telecommunication lines against direct lightning flashes
1/5
TD739 (A.1)
Rev.. K.87
Guide for the application of electromagnetic security requirements - Overview 
1/5 TD686 (A.1)
KSTR-safety-zones
Impact of public safety zones and compliance distances on telecommunication network development and deployment
3/5 TD806-R1 (A.13)
Rev K.58
EMC, resistibility and safety requirements and guidance for determining responsibility under co-located information and communication technology installations4/5 TD744 (A.1)
Rev K.59
Electromagnetic compatibility, resistibility and safety requirements and procedures for connection to unbundled cables
4/5 TD743 (A.1)
Rev K.63
Maintaining the suitability of production telecommunications equipment to its intended electromagnetic environment4/5 TD742 (A.1)
Rev K.127
Immunity requirements for telecommunication equipment in close proximity use of wireless devices4/5 TD745-R2 (A.1)
KSTR_emc.uav
Electromagnetic Compatibility (EMC) Test Methods for Civilian Unmanned Aerial Vehicle (UAV) with Cellular Communication Modules4/5 TD763-R1 (A.13)
L.1205rev
Interfacing of renewable energy or distributed power sources to up to 400 VDC power feeding systems6/5 TD783 (A.1)​
L.MCI_APS
Monitoring and Control Interface for Power, Cooling and Building Environment Systems in Telecommunication Networks - Alternative Power Systems
6/5
TD782-R1 (A.1)
L.SDC
Technical requirements of implementation for subsea data centres
6/5
TD678-R2 (A.1)
L.optim_DC
Methodologies of optimization for multi-level thermal environment of Data Centre
6/5
TD709-R1 (A.1)
LSTR_PET_DC
Application of power electronic transformers for reducing energy consumption and carbon emissions in data centres
6/5
TD681-R2 (A.13)
L.Arch_AI energy
Specification of energy supply system architecture for artificial intelligence computing scenarios
6/5
TD683-R2 (A.1)
L.MM_AI model​

Energy efficiency metrics and measurement methodology for artificial intelligence large model​​6/5
​TD685-R1 (A.1)
L.EC&MM-IoTD​

Energy consumption metrics and measurement methodology of constrained IoT sensor devices in smart grid​​6/5
TD700-R2 (A.1)
​LSTR_ECEM-SN

​Energy consumption and efficiency metrics for operators of 5G networks in shared network scenario
​6/5
TD692-R1 (A.13)​​
​L.Suppl.QAEE to ITU-T L.1331
​Study of QoS-aware energy efficiency metric of mobile networks
6/5​
​TD695-R2 (A.13)
L.AZB
​Aqueous Zinc-Based Battery Systems for Base Station Applications
6/5
​TD771-R3 (A.1)
L.VPP_DC
​Functional requirements and implementation guidance of virtual power plants at data centres
​6/5
​TD785-R1 (A.1)
L.DSBS
​Application practice of Direct Current dual-cooling source air conditioner utilizing compressor and heat pipe in base station
​6/5
​TD788-R1 (A.1)
L.safe_bat​

​Guidelines of safety applications for lithium iron phosphate battery in data centres
6/5​ ​TD796-R2 (A.1)
​L.TLCsafe_bat
​Safety Technical Specifications for Lithium Batteries in Telecom Sites
​6/5
​TD799-R2 (A.1)
L.NTLB​
​Non-Full-Time Immersion Liquid Temperature-controlled Lithium Iron Phosphate Battery Systems for Information and Telecommunication Applications
​6/5
​TD791-R2 (A.1)
​L.REDC_EM
​Framework of Energy Management System for Data Centres Using Directly Connected Renewable Energy Sources
6/5​
​TD766-R4 (A.1)
​ITU-T L.CRT-EoL
​Guidelines for sustainable management and safe disposal of CRT waste
​7/5
​TD696-R1 (A.1)​
​ITU-T L.RRTE

Guidelines for Advancing Resource Recovery from end-of-life Telecom Equipment​7/5​​
TD816-R2
(A.1)​
​L.CU_AI
​Guidelines for Circular Utilization of Artificial Intelligence Computing Power Resources 
​7/5
TD803-R1 (A.1)
​L.CP
Standardized Terminology for Computing power resources and Grid Power resources Coordination​8/5​
​TD702-R1 (A.1)
​L.Env_storage
Environmental Impact Assessment Guideline for Data Storage Devices
​9/5
TD775-R1 (A.1)
L.SupplExamplesAI​​

​Examples of assessments of artificial intelligence systems
9/5​TD836-R1 (A.13)​
​L.AggregatedAI
​Guidelines for Assessing the Environmental Impact of Artificial Intelligence aggregated at worldwide, country and city level
​9/5
TD835-R1 (A.1)​
L.Score_AI​

​Guidance for scoring artificial intelligence systems from the perspective of environmental impact
9/5​ ​TD842-R2 (A.1)
​L.GEMS_VPP
Framework of GHG Emission Management System for Virtual Power Plant Environment
​11/5
​TD754-R4 (A.1)
​L.VPP_RC
​Implementation of a virtual power plant at residential communities
11/5​ ​TD757-R3 (A.1)

L.ICT_VPP
​Framework and methodology for assessing ICT-based virtual power plants to climate change mitigation
​12/5
​TD747-R3 (A.1)
​L. FR_DT_MI
​Framework and Guidelines for Addressing and adapting Climate Change through Digital Transformation of Manufacturing Industry
​12/5
TD761-R2 A.1​

Reports of Working Parties

Working Parties Meeting
Report of Q8/5 Guides and terminology on envi​ronment​
The draft Report of Q8/5 can be found in TD518-R2.

Preparation for the second meeting of TSAG (26-30 January 2026)​​

The second meeting of the Telecommunication Standardization Advisory Group (TSAG) will be held in Geneva from 26 to 30 January 2026. 
During the Study Group 5 meeting, experts discussed and prepared a reply for the following liaison statement: To develop this reply, the Study Group 5 Vice-Chair, Daniel Dianat, was nominated to conduct informal consultations with the Study Group 5 extended management team and any interested experts. The resulting reply was prepared and approved as TD661-R2
  
Additionally, Study Group 5 experts discussed the following liaison statements: During the Study Group 5 liaison statement session, it was noted that additional time was required to finalize the response. It was, therefore, agreed that the liaison statement would be approved by the Study Group 5 management team by correspondence, and submitted in December 2025.

Moreover, the ITU-T Study Group 5 Chair informed the meeting that, in line with usual practice, he will provide an update to TSAG on the Study Group 5 Lead Study Group report, covering the two Study Group 5 meetings held in 2025.

Furthermore, the ITU-T Study Group 5 Chair provided an update on the activities of the Inter-Sector Coordination Group (ISCG) on issues of mutual interest, the last meeting of which was held on 28 May 2025, in Geneva and online.

It was noted that the TSAG representatives to the ISCG are: And that the Climate Change coordinators are: It was also mentioned that participation in ISCG meetings is open to any interested expert. Further information on ISCG activities is available here

Discussion on the review of ITU-T SG5 Recommendations

Contribution C213-R1 on “Ensuring SG5 Relevance: Updating and Enhancing Outdated ITU-T Recommendations” was submitted by Huawei Technologies Co., Ltd (China) and Telefon AB – LM Ericsson (Sweden) to Question All/5. The purpose of this Contribution is to ensure that all ITU-T Recommendations currently in force under the responsibility of ITU-T Study Group 5 remain up to date and to propose a mechanism for establishing a systematic process and prioritization plan for their regular review and enhancement.

This Contribution was presented during the Study Group 5 plenary session. It was suggested that the Rapporteur of each Question take this proposal into consideration within their respective work programmes and discuss the most appropriate approach to keep the in-force Recommendations up to date. A more consistent and coordinated approach will be discussed further at the next Study Group 5 meeting.

During the Study Group 5 meeting, Questions 1/5, 2/5 and 4/5 produced the following TDs:
TD​​
Title​
Qu​estion​
​TD687-R1
​List of Recommendations under Q1/5 Responsibility
​Q1/5
​TD797
​Updated status of maintenance of Recommendations in regarding Q2/5
​Q2/5
TD741
​Updated status of maintenance of EMC Recommendations in the responsibility of Q4/5
​Q4/5

​Highlights of Council 2025 (17–27 June 2025)

The Chair of ITU-T Study Group 5 provided highlights of the ITU Council 2025 meeting, held from 17 to 27 June 2025. In particular, he noted the following key outcomes: More detailed information can be found here​.

Action plans​ for implementation of WTSA-24 Resolutions 72, 73 and 79 (Rev. New Delhi, 2024) (Human exposure to EMF, environment, climate change and circular economy, and e-waste)
TD654 - contains the Draft Action Plan for the implementation of WTSA-24 Resolutions 72, 73 and 79 (Rev. New Delhi, 2024) (Human exposure to EMF, environment, climate change and circular economy, and e-waste). This document was presented during the meeting and inputs were requested​. 

ITU-T Study Group 5 Regional Groups 

The ITU-T Study Group 5 Regional Group for the Arab Region (SG5RG-ARB) was held fully virtual on 3 September 2025.

The meeting was attended by 21 participants from 12 countries. The meeting received five Contributions and addressed 21 TDs.

Additionally, the SG5RG-ARB agreed to the revised Terms of Reference as contained in TD646.

As the result of the SG5RG-ARB meeting, four Contributions were submitted for the Study Group 5 meeting. 

The SG5RG-ARB management team was updated as shown here

The report of the SG5RG-ARB is available as TD595 and SG5RG-ARB Report 1.
The ITU-T Study Group 5 Regional Group for Africa (SG5RG-AFR) will be held from 10 to 13 February, in Equatorial Guinea.​
​​

List of stale work i​tems 
​TSB provided information on the list of stale work items as contained in TD37-R1. The Rapporteurs of the concerned Questions were encouraged to discuss these work items during their respective sessions. The following actions were taken: ​

​​​Q
Work item Title Action taken
Q​6/5L.MM_DC
Energy Efficiency Metric and Measurement Methodology for Data Centres and Telecommunication Rooms
Updated as contained in TD689-R1.
Q2​/5L.SDT
Definition of Sustainable Digital Transformation
Discontinued

Work items to become stale in 6 months​

Q3/5K.Suppl.Reflection (ex K.reflection)
Impact of the metallic structures for the EMF exposure levelContributions were encouraged for the next SG5 meeting
Q6/5
L.1203
Colour and marking identification of up to 400 VDC power distribution for information and communication technology systems
Updated as contained in TD664.
Q6/5
L.1210
Sustainable power-feeding solutions for 5G networks
Consented as contained in TD660-R1
Q6/5
L.fra_cooling
Functional Requirements and Adoption of Cooling Technology for ICT installations
Contributions were encouraged for the next SG5 meeting
Q6/5
L.HRES_PD
Hybrid renewable energy system from solar based for ICT portable devices
Updated as contained in TD726.
Q6/5L.IEDL
Energy saving strategy for deep learning computing
Updated as contained in TD723.
Q6/5L.liquid_DC
High Efficiency Liquid Cooling Solutions and Practices for Data Centres
Updated as contained in TD727.
Q6/5L.MM_Computing_power
Computing power efficiency matrix and measurement methodology
Updated as contained in TD725.
Q6/5L.PS_HPC
Distributed Power Supply Architecture for High Performance Computing (HPC) Data Center
Contributions were encouraged for the next SG5 meeting.
Q6/5L.S_AI
Recommendation for the design of environmentally Sustainable AI-based and XR-based Systems
Contributions were encouraged for the next SG5 meeting.
Q6/5L.soft_ES
The functional requirements and test methods of software energy-saving for 5G network
Updated as contained in TD731.
Q7/5L.DPP4C
Consumer-oriented environmental information and reversed value chain information about ICT goods on digital product passports
Contributions were encouraged for the next SG5 meeting.
Q7/5L.Suppl.GSP
Specific principles for the green supply chain management of information and communication technology manufacturing industry
Updated as contained in TD716.
Q7/5L.Suppl.ICIP
Best practices for implementing the circular economy in ICT management
Updated as contained in TD823.​
Q7/5L.UPCSW
Universal power adapter for smart watches and smart bands
Updated as contained in TD769.
Q9/5L.EnvImpServers
Requirements for environmental impact evaluation of servers
Contributions were encouraged for the next SG5 meeting.
Q9/5L.impact_simplified
Simplified assessments of the GHG emissions impact of the use of ICT solutions
Contributions were encouraged for the next SG5 meeting.
Q9/5L.Suppl.CFA_BSE to ITU-T L.1410
Guidelines for Carbon Footprint Assessment of 5G Base Station Equipment
Contributions were encouraged for the next SG5 meeting.
Q9/5L.TR_GLC_service
General principles for the evaluation of low-carbon ICT service enterprises
Contributions were encouraged for the next SG5 meeting.
Q9/5L.VirtualMeetings
Methodology for estimating GHG emissions in the frame of virtual meetings and events
Contributions were encouraged for the next SG5 meeting.
Q9/5LSTR.GLC-Manuf
General principles for the evaluation of low-carbon ICT manufacturing enterprises
Contributions were encouraged for the next SG5 meeting.
Q11/5L.resBIMS
Resolution method for Building Infrastructure Management Systems​ (BIMS) in sustainable city
Contributions were encouraged for the next SG5 meeting.


Collaboration matters and Information Sharing 
During the opening plenary, the following information was provided:​ ​​Presentation on ITU - Green Digital Action initiative activities at UNFCCC COP 30 as contained in TD651 was delivered by Robin Zuercher, Programme Officer at ITU. 
An EGTI subgroup on Environmental Indicators was created. The group presented their report on 29 September 2025. Q9/5 experts provided comments to the report to align the work with draft Recommendation ITU-T L.1472. Please see: Developing new indicators: measuring the environmental footprint of key players in the ICT sector. 
ITU Kaleidoscope 2026 will take place from 7 to 10 July 2026 under the theme: AI and frontier technologies for good. More information is contained in TD649.
Highlights of the following events were presented and noted:
During the closing plenary, a presentation of highlights of the report on Environmental Impacts of the ICT Sector in Switzerland was delivered, as contained in TD843​.

The following TDs were noted during the ITU-T Study Group 5 opening plenary:

Study Group 5 Newcomer's session 
A session for Newcomer session was held on Thursday, 30 October 2025, 1730 – 1900 CET.
The following TDs were prepared for the newcomers and were noted during the ITU-T Study Group 5 opening plenary.​

​Promotion activities and bridging the standardizaion gap

Information was provided on the events organized as of June 2024 related to the activities on Environment, EMF and Circular Economy:
Additionally, the following events were announced:

Study Group 5 Management Team, Rapporteurs and Associate Rapporteurs and Liaison Rapporteurs

During the Study Group 5 closing plenary, Mr Sangjin Jeong (Republic of Korea) was appointed as Vice-Chair of Working Party 3/5.

Furthermore, Mr Salahdine Souheib (Mauritania) was appointed as Vice-Chairman of the Study Group 5 Regional Group for the Arab Region (SG5RG-ARB), replacing Mr Ahmed R’Guigue, as reflected in document TD679.

Dates of the next ITU-T Study Group 5 meeting ​

During the closing plenary, an important discussion took place regarding the next Study Group 5 meeting. There was consensus among experts that Study Group 5 should continue holding two meetings per year.

At present, the only available dates in Geneva for the first-semester meeting in 2026 are 21–29 May 2026. However, it was noted that these dates coincide with a major Muslim religious celebration. The Chair expressed his openness to adjusting the schedule should an invitation be received from a country or organization willing to host the meeting. If no such invitation is received by 15 December 2025, the meeting will be held in Geneva, from 21 to 29 May 2026.

 
Executive Summary from previous meetings:2025-10​ | 2025-06​ |​ 2024-06​2023-11​2023-06​ | 2023-02 | 2022-12​ | 2022-10​​ | 2022-07​ | 2021-12​ | 2021-05​ I 2020-10 I 2020-05​​ I 2019-09 | 2019-05​​ | ​2018-09 | 2018-05​ | 2018-03 2017-11 | 2017-05 | 2016-04 | 2015-10 | 2014-12 | 2014-07 | 2014-05 | 2013-12 | 2013-01 | 2012-04 | 2011-09 2011-04 | 2010-11 | 2010-04 | 2010-01 | 2009-10 | 2009-05 | 2008-11 | 2008-02

ANNEX: Detailed discussions 

Working Party 1/5 - EMC, lightning protection, ​EMF

Working Party 1/5, chaired by Mr Beniamino Gorini, has made significant progress on various work items and has achieved the following key outcomes:

Q1/5:   Electrical protection, reliability, safety, and security of telecommunication/ICT systems​
The Associate Rapporteur of Q1/5 (Mr Wang Huagang) opened the meeting and presented the draft agenda contained in TD491-R2, which was approved with modifications.
The meeting received and reviewed two Contributions relevant to Q1/5.

The main discussions were:

Additionally, during the meeting, the Contribution C213-R1 “Ensuring SG5 Relevance: Updating and Enhancing Outdated ITU-T Recommendations “was discussed and the in-force/published Recommendations under Q1/5 responsibility were reviewed. The TD687-R1 “List of Recommendations under Q1/5 Responsibility" was prepared with the status of Q1/5 Recommendations in which all documents related to Q1/5 are listed in table 1. A general discussion took place on the revision of outdated Recommendations. Q1/5 experts realized that some Recommendations of Q1/5 have been published long time ago and at the next Q1/5 meeting the old Recommendations will be analysed carefully.

The work programme was updated.

The report of the Q1/5 meeting is contained in TD511-R2

Q2/5:   Equipment specification and component/device for protection against lightning and other phenomena
The Rapporteur of Q2/5 (Mr Eiichi Kobayashi) opened the meeting and presented the draft agenda contained in TD492-R1, which was approved without modifications.

The meeting received and reviewed eight Contributions relevant to Q2/5.

The main discussions were:​ ​​Additionally, during the meeting, it was decided to withdraw three work items:​
that were in stale state at the last Study Group 5 meeting; see TD789.​

The list on the Liaison Rapporteurs to other organizations related to Q2/5 was reviewed and no changes were identified.

The list of Recommendations regarding Q2/5 for verifying the up-to-date status, have been produced; see TD797.

The work programme was updated.

The report of the Q2/5 meeting is contained in TD512-R1.

Q3/5:   Assessment of human exposure to electromagnetic fields (EMFs)
The Co-Rapporteurs of Q3/5 (Ms Bhoomika Gaur and Ms Helen Nakiguli Sekasala) opened the meeting and presented the draft agenda contained in TD493-R10, which was approved with modifications.

The meeting received and reviewed 15 Contributions relevant to Q3/5.

The main discussions were:

​Additionally, the following contributions were also discussed:​ During the meeting, input was received for TD661-R2 on the outgoing liaison statement, which contains the response of ITU-T Study Group 5 to TSAG on lead study group concept. The response was submitted accordingly.

The work programme was updated.

The report of the Q3/5 meeting is contained in TD513-R2.

Q4/5:   Electromagnetic compatibility (EMC) aspects in telecommunications/ICTs
The Co-Rapporteurs of Q4/5 (Messrs Beniamino Gorini & Xing Hai Zhang) opened the meeting and presented the draft agenda contained in TD494-R2, which was approved without modifications.

The meeting received and reviewed seven Contributions relevant to Q4/5.

The main discussions were:

​The work programme was updated.
The report of the Q4/5 meeting is contained in TD514-R1.​

Working Party 2/5 - Environmental Efficiency of new and emerging telecommunications/ICTs installations and applications

Working Party 2, chaired by Mr Paolo Gemma, has made significant progress, and has achieved the following key outcomes:

Q6/5:   Environmental efficiency of telecommunications/ICTs
The Co-Rapporteurs of Q6/5 (Mr Magnus Olsson and Ms Ying Shi) opened the meeting and presented the draft agenda contained in TD496-R7, which was approved with modifications.

The meeting received and reviewed forty-two Contributions relevant to Q6/5.

The main discussions were:

Note:

During the discussion of the new work items in WP3/5 closing plenary, it was identified that the following new work item is in the mandate of Q6/5. Therefore, it was decided to submit it to the Study Group 5 closing plenary to approve the transfer of this work item to Q6/5. The Study Group 5 closing plenary approved the transfer of this new work item to Q6/5:
TD766-R4
L.REDC_EM​
Framework of Energy Management System for Data Centres Using Directly Connected Renewable Energy Sources

Additionally, during the meeting, joint sessions with remote participation were held with ETSI EEPS and ETSI EE2 working groups discussing the joint work items aiming to develop technically aligned deliverables.

The work programme was updated.

The report of the Q6/5 meeting is contained in TD516-R2.

Q7/5:   E-waste, circular economy, and sustainable supply chain management

The Co-Rapporteurs of Q7/5 (Ms Susanna Kallio and Ms Hoda Salah Eldin Shakra) opened the meeting and presented the draft agenda contained in TD497-R4, which was approved without modifications.

The meeting received and reviewed 22 Contributions relevant to Q7/5.

The main discussions were:

Additionally, during the meeting, there was a discussion of Q7/5 WIs, which are in danger of becoming stale in the coming months. It was noted that L.DPP4C is the only work item that did not have input for this meeting. Other work items will get an updated baseline from this meeting.

The work programme was updated.

The report of the Q7/5 meeting is contained in TD517-R2.​

Working Party 3/5 - New and emerging telecommunications/ICTs solutions for Climate Action towards Net Zero emissions

Working Party 3, chaired by Ms Qi Shuguang, has made significant progress and has achieved the following key outcomes:

Q9/5:
   Assessing the impact of telecommunications/ICTs on climate change, biodiversity and the environment - including the influence on other sectors
The Rapporteur, Mr Jean Manuel Canet (Orange), opened the meeting and presented the draft agenda contained in TD500-R5, which was approved with modifications.

The meeting received and reviewed 66 Contributions relevant to Q9/5, some of them reflecting inputs already discussed in the e-meetings held since the last Study Group 5 meeting in June 2025. Forty TDs relevant to Q9/5 were also received, some of them being relevant to several questions. In addition, in total 70 TDs relevant to Q9/5 were published.

The main discussions were:

​During the meeting, joint sessions were held with ETSI EE EEPS on draft Recommendations L.SimplifiedLCA and L.EnvAI.

Regarding success stories of Study Group 5, the following Recommendations and Supplement for Q9/5 perspective were suggested:

​The work programme was updated.

The report of the Q9/5 meeting is contained in TD520-R1.

Q11/5: Climate change mitigation and smart energy solutions
The Rapporteur, Mr Sangjin Jeong (ETRI), opened the meeting and presented the draft agenda contained in TD501-R4, which was approved with modifications.

The meeting received and reviewed 14 Contributions relevant to Q11/5.

The main discussions were:

Note:
During the discussion of the new work items in WP3/5 closing plenary, it was identified that the following new work item is in the mandate of Q6/5. Therefore, it was decided to submit it to the Study Group 5 closing plenary to approve the transfer of this work item to Q6/5. The Study Group 5 closing plenary approved the transfer of this new work item to Q6/5:
TD766-R4
L.REDC_EM​
Framework of Energy Management System for Data Centres Using Directly Connected Renewable Energy Sources

​​Additionally, two contributions for ITU-T L.FR-ESC and ITU-T L.HRES_PD&HA that were relocated to Q6/5 at the beginning of the current study period were received in Q11/5. After the discussion, it was agreed to discuss the contribution for ITU-T L.HRES_PD&HA in Q11/5 and deliver the discussion results to Q6/5. The future discussion about L.HRES_PD&HA will be continued in Q6/5 only. Additionally, it was agreed to continuing the development of L.FR-ESC in Q6/5 and Q11/5 in the subsequent meetings.

​The work programme was updated.

The report of the Q11/5 meeting is contained in TD521-R3.

Q12/5: Climate actions and adaptation to climate change through sustainable and resilient telecommunications/ICTs (including new and emerging)
The Co-Rapporteur (Mr Derick Khamali) opened the meeting and presented the draft agenda contained in TD502-R4, which was approved with modifications to the latest TD502-R4.

The meeting received and reviewed nine Contributions relevant to Q12/5.

The main discussions were:

​​Additionally, during the meeting, it was discussed as follows:

The work programme was updated.

The report of the Q12/5 meeting is contained in 
TD522-R2.      

Report of Q8/5 Guides and terminology on environment

The Rapporteur of Q8/5 (Mr Paolo Gemma) opened the meeting and presented the draft agenda contained in TD498-R1, which was approved with modifications.

The meeting received and reviewed two Contributions relevant to Q8/5.

The main discussions were:​

​Additionally, during the meeting, TD637 was presented and prepared by Q8/5 Rapporteur containing the list of terms defined in ITU-T Study Group 5 deliverables with the answers from CCT. (Terms validated or comments on term).

A liaison to be sent to CCT with the new terms defined by Study Group 5 is contained in TD826 was approved.

The work programme was updated.

The report of the Q8/5 meeting is contained in TD518-R1​​