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Executive Summary

Executive Summary of the ITU-T Study Group 20 Meeting (Geneva, 15-25 September 2025)

Numbers and other links

Participants: 362. The ITU-T SG20 meeting was held physically in Geneva with remote participation via MyMeetings.

Contributions: 226

TDs (not counting the revisions): 568

Incoming/ Outgoing liaison statements: 106 incoming liaison statements /  64 outgoing liaison statements TD623-R7 (also see LS database).

Photos.

Main discussions and results

At its meeting held from 15-25 September 2025 in Geneva, Switzerland, ITU-T SG20 achieved the following outcomes:

Recommendations approved: 8
Consented Recommendations: 11
Recommendations Determined: 10
Recommendations agreed for Deletion: None at this meeting
Other texts approved: 3
New work items: 57

Major accomplishments

Approved Recommendations by ITU-T SG20 (TAP-WTSA-20 Resolution 1) - 8

ITU-T Rec. Number	Title	Question	TD
Y.4235	Requirements of IoT-based power grid communication network	Q2/20	TD653-R1
Y.4236	Requirements for Real-Time Event Monitoring and Integrated Management in Smart City Platforms	Q2/20	TD654
Y.4237	Requirements and capability framework of digital twin for intelligent water conservancy system	Q2/20	TD674
Y.4496	Requirements and reference architecture of smart public health emergency information system	Q3/20	TD660-R1
Y.4708	Management framework for IoT-based distributed power equipment	Q3/20	TD662
Y.4609	Inventory metadata for IoT-based electric power infrastructure monitoring system	Q4/20	TD663
Y.4814	Functional requirements and architecture of access control service of IoT platform enabled by zero trust in decentralized environments	Q6/20	TD652-R1
Y.4911	Fey performance indicators of ICT based data support capability for urban flood disaster prevention and mitigation	Q7/20	TD649-R2

Recommendations consented by ITU-T SG20 for Last Call (AAP - Recommendation ITU-T A.8) - 11
The ITU-T SG20 plenary meeting gave consent (AAP) to a number of draft new ITU-T Recommendations according to Recommendation ITU-T A.8:

Revised Recommendations

ITU-T Rec. Number	Title	Question	TD
Y.4477	Framework for autonomous service interworking with device discovery and management in heterogeneous Internet of things environments	Q3/20	TD838
Y.4417	Framework of self-organization networking in Internet of things environments	Q3/20	TD837-R1

New Recommendations

ITU-T Rec. Number	Provisional name	Title	Question	TD
Y.4238	Y.dtmv-reqts	Requirements for integrating virtual and physical worlds through digital twins in the metaverse	Q1/20	TD766
Y.4239	Y.dtmv-ref	Reference model for integrating virtual and physical worlds through digital twins in the metaverse	Q1/20	TD767
Y.4240	Y.dtmv-if	Interoperability for integrating virtual and physical worlds through digital twins in the metaverse	Q1/20	TD768
Y.4511	Y.IoT-CONV-fr	Convergence framework for enhancement of service intelligence based on Internet of Things	Q3/20	TD839-R1
Y.4610	Y.SPDM-reqt	Data requirements and models for smart pest and disease management services	Q4/20	TD785-R1
Y.4611	Y.cii	Requirements and data model of data collected from city infrastructure	Q4/20	TD742-R3
Y.4612	Y.AIoT-fr	Framework of Artificial Intelligence of Things	Q4/20	TD842
Y.4613	Y.AIoT-dpsm	Functional requirements and capabilities of data processing for smart manufacturing with Artificial Intelligence of Things	Q4/20	TD891-R2
Y.4511	Y.DT-CS	Requirements and functional architecture for a blockchain-based sustainable and cooperative digital- twin creation system	Q9/20	TD700-R1

Agreed informative texts - 3

ITU-T Tech.Rep./ Sup. Number	Provisional name	Title	Question	TD
Y.Suppl.58	Y.Suppl.58	Global Standards Landscape for Internet of things, digital twins and smart sustainable cities and communities	Q1/20	TD673
Y.Suppl.92	Y.Sup.IoT-CONV	Overview of IoT Convergence	Q3/20	TD827-R2
Y.Suppl.93	Y.Sup.SRS-SR	Supplement to ITU-T Y.4120 - Security threats and requirements of IoT applications for smart retail stores	Q6/20	TD802

Recommendations determined - 10

ITU-T Rec. Number	Provisional name	Title	Question	TD
Y.4241	Y.dt-ScomCam	Common requirements and capability framework of digital twin for smart complex and campus	Q2/20	TD681-R2
Y.4242	Y.energy-storage	Requirements and capability framework of energy storage service for residential community in smart city	Q2/20	TD678-R1
Y.4243	Y.IoT-smartschool	Requirements of IoT-based smart school management	Q2/20	TD679-R1
Y.4912	Y.SNPG-ref	Reliability evaluation framework of sensing network in power grid	Q7/20	TD739-R1
Y.4512	Y.SC-DESMS	Functional architecture of IoT-based distributed energy storage management system in smart cities	Q10/20	TD672
Y.4244	Y.EPWS-fc	Functional capabilities to support IoT-based electric power worksite operation services	Q10/20	TD671-R1
Y.4614	Y.CL-EDM	Energy data model for city-level energy management platform	Q4/20	TD715
Y.4815	Y.uas-dc-fr	Framework of unified authentication service for data collaboration in IoT-based electric power infrastructure	Q6/20	TD799
Y.4816	Y.bsis-sec	Security requirements and capabilities of base station inspection services using unmanned aerial vehicles	Q6/20	TD800-R1
Y.4420	Y.4420-rev	Framework of Internet of things based monitoring and management for elevators	Q2/20	TD680-R1

A.4, A.5 and A.6 Qualifications

ITU-T Rec. Number	Provisional name	Title	Question	TD
None.

New work items

ITU-T Rec. /Tech.Rep./Sup.	Working title	Title	Question	TD
Recommendation	Y.SDTCS	Requirements and capabilities of shared-device task coordination system in smart industrial park	Q2/20	TD845-R1 (A.1 TD844-R1)
Recommendation	Y.IIoT-AIA	Framework and requirements for AI agent system in industrial IoT environment	Q2/20	TD847-R1 (A.1 TD846-R1)
Recommendation	Y.RWE	Framework and requirements for real-world entity tokenization based on IoT data	Q2/20	TD849-R1 (A.1:TD848-R1)
Recommendation	Y.EIR-ILH	Requirements and capabilities of intelligent robots for industrial IoT scenarios	Q2/20	TD851-R1 (A.1 TD850-R1)
Recommendation	Y.META-PEH	Requirements and framework of metaverse for IoT-based power equipment hoisting	Q2/20	TD853-R1(A.1 TD852-R1)
Recommendation	Y.SERS-fra	Requirements and framework of smart emergency rescue service based on IoT devices	Q2/20	TD857-R1(A.1 TD856-R1)
Supplement	Y.Sup-GDDE	Supplement to ITU-T Y.4221 - Use cases and requirements for gateway device in distribution of electricity	Q2/20	TD859-R1 (A.13 TD858-R1)
Technical Report	YSTR.IoT-PGMS	Potential requirements of IoT-based Perishable Goods Monitoring System	Q2/20	TD863-R1(A.13 TD862-R1)
Recommendation	Y.SRC-KPI	Key performance indicators of smart residential community assessment	Q7/20	TD720-R2 (A.1 TD721-R1)
Recommendation	Y.PEF-IIoTS-SM	Performance evaluation framework of industrial IoT (IIoT) systems in smart manufacturing	Q7/20	TD722-R1 (A.1: TD723-R1)
Recommendation	Y.4904-rev	Smart sustainable cities maturity model	Q7/20	TD753-R1 (A.1 TD752-R1)
Recommendation	Y.HealthMon	Reference architecture, requirements and capabilities of health monitoring systems for digital health	Q8/20	TD749-R1 (A.1 TD748-R1)
Recommendation	Y.CHA-RE	Requirement of converged hotline application in smart communities	Q8/20	TD755-R2 (A.1 TD754-R2)
Recommendation	Y.EIR-HCSH	Requirements and capability framework of intelligent robots for healthcare in the smart home	Q8/20	TD760-R1 (A.1 TD759-R1)
Recommendation	Y.IoT-PwD-ID	Framework for personalized accessibility enablement in smart transport systems for persons with disabilities	Q8/20	TD765-R1 (A.1 TD764-R2)
Recommendation	Y.PHS-AI	Requirements and capabilities for AI agent-enabled public health services in smart community	Q8/20	TD897-R1 (A.1 TD896-R1)
Recommendation	Y.IoT-HAC	Requirements of human-centric human-AI collaboration for IoT	Q8/20	TD899-R1 (A.1 TD898-R1)
Recommendation	Y.IECC	Interactive emergency communication within citiverse	Q8/20	TD902-R1 (A.1 TD901-R2)
Technical Report	YSTR.GDL-HUM	Guidelines on using digital tools and AI agents to optimize humanitarian interventions in remote areas	Q8/20	TD908-R1 (A.13: TD907-R1)
Recommendation	Y.meta-Ed	Requirements and Functional Architecture for IoT enabled multilingual and immersive Education System	Q8/20	TD919-R1 (A.1 TD918-R1)
Recommendation	Y.IoT-IHS	Requirements and framework of IoT-based intelligent healthcare system	Q8/20	TD922-R1 (A.1 TD921-R1)
Recommendation	Y.dt-RDRM	Requirements of digital twin representation model for power grid	Q1/20	TD773 (A.1 TD772)
Recommendation	Y.diwi-reqts	Requirements of digital identity wallet interoperability for smart city services	Q1/20	TD775 (A.1 TD774)
Supplement	Y.Sup.DRI-id	Supplement to ITU-T Y.4607 - Identification framework for autonomous mobile robot services	Q1/20	TD779 (A.13 TD778)
Recommendation	Y.citiverse-ai-reqts	Requirements for AI-enabled interoperability in citiverse	Q1/20	TD777 (A.1 TD776)
Recommendation	Y.IoT-RAM-fa	Functional architecture of IoT-based rain attenuation measurement system	Q3/20	TD834 (A.1 TD833)
Supplement	Y.Sup.VS-PME	Functional architecture of IoT-based Substation Auxiliary Monitoring System	Q3/20	TD836 (A.13 TD835)
Recommendation	Y.DPP-ICT	Requirements and System Architecture of Digital Product Passport for ICT Goods	Q5/20	(A.1 TD714-R3)
Technical Report	YSTR.OS-DPP-ICT	A case study of an open-source Digital Product Passport system for ICT goods use case	Q5/20	(A.13 TD713-R1)
Technical Report	YSTR.AIOAP	Hybrid AI-based Oral Assessment Platform	Q5/20	(A.13 TD716-R2)
Technical Report	YSTR.EAI	Guide on the use of embodied artificial intelligence for smart sustainable cities	Q5/20	TD783 (A.13 TD782)
Recommendation	Y.IoT-EM	Requirements and Framework of IoT-based Energy Management for Industrial Parks	Q10/20	TD706-R1 (A.1 TD705-R2)
Recommendation	Y.DT-DPEM	Requirements and framework of digital twin based distributed photovoltaic energy management	Q10/20	TD710-R1 (A.1 TD709-R1)
Recommendation	Y.IoT-EOS	Functional architecture of the IoT-based energy optimization system in municipal lighting facilities	Q10/20	TD708-R1 (A.1 TD707-R2)
Recommendation	Y.PSEMC-fra	Framework of IoT-based photovoltaic-storage coordinated energy management and control	Q10/20	TD712-R1 (A.1 TD711-R2)
Recommendation	Y.EVEG-fra	Framework of IoT-based electric vehicle and energy grid coordination management	Q10/20	TD729-R1 (A.1 TD728-R1)
Recommendation	Y.IoT-RMS	Framework of IoT-based resilience management system for urban electrical infrastructure	Q10/20	TD733-R1 (A.1 TD732-R1)
Recommendation	Y.ESCP-fra	Requirements and framework of IoT-based energy storage-charging power service	Q10/20	TD727-R1 (A.1 TD726-R2)
Recommendation	Y.KPI-SIIS	Key performance indicators of substation intelligent inspection system	Q10/20	TD735-R1 (A.1 TD734-R1)
Recommendation	Y.IoT-AM-BESM	Assessment Model of IoT-based Battery Energy Storage Management in SSC&C	Q10/20	TD731-R1 (A.1 TD730-R1)
Recommendation	Y.AIS-EPIMS	Requirements and capabilities of AI agent system for IoT-based electric power infrastructure monitoring systems	Q10/20	TD737-R1 (A.1 TD736-R1)
Recommendation	Y.IoT-FETA	Framework for Ensuring Trust of AI Data across Distributed Systems for Intelligent IoT Services	Q4/20	TD780-R1 (A.1 TD781-R1)
Recommendation	Y.DPM-DT	Requirements of data processing and management for digital twin-based smart cities and communities	Q4/20	TD892-R1 (A.1 TD893-R1)
Recommendation	Y.Agentic-AIoT	Functional requirements for Agentic Artificial Intelligence of Things	Q4/20	TD904-R1 (A.1 TD905)
Recommendation	Y.RADM-RESM	Requirements and functional architecture for intelligent remote escalator monitoring system	Q4/20	TD911-R2 (A.1 TD912-R2)
Technical Report	YSTR.DES-TS	Data formats for IoT road traffic sensors	Q4/20	TD909-R3 (A.13 TD910-R3)
Recommendation	Y.sec-rtps	Security requirements and framework for IoT infrastructures in roadside traffic perception for Intelligent Transportation Systems	Q6/20	TD744-R1 (A.1 TD807-R1)
Supplement	Y.supp.trust-SG20	Supplement to Y.4000-series – Concepts and perspectives of Trust in IoT, digital twins and smart sustainable cities and communities	Q6/20	TD746-R4 (A.13 TD809-R3)
Recommendation	Y.dsc-sar	Security assurance requirements for digital supply chain in smart sustainable cities	Q6/20	TD811 (A.1 TD810-R1)
Recommendation	Y.sup.sec-dmp-issc	Supplement to ITU-T Y.4481 – Security framework for data middle-platform in IoT and smart sustainable cities	Q6/20	TD813 (A.13 TD812)
Recommendation	Y.EV-charging-sec	Security requirements and capabilities of public smart charging services for electric vehicles	Q6/20	TD815 (A.1 TD814)
Recommendation	Y.sec-mst	Security requirements of mitigating AI-generated synthesis threats for IoT in smart home	Q6/20	TD745-R1 (A.1 TD808-R1)
Recommendation	Y.DEHI-fra	Requirements and framework for IoT-based decentralized energy harvesting system in low-infrastructure environments	Q9/20	(A.1 TD876-R1)
Recommendation	Y.IoT-MGM	Requirements and framework of distributed IoT-based micro-grid management	Q9/20	TD871 (A.1 TD870-R1)
Recommendation	Y.REC	Requirements and capability framework of decentralized renewable energy certificate interworking based on the Internet of Things	Q9/20	TD758-R2 (A.1 TD757-R2)
Recommendation	Y.DIoT-AIAC	Requirements of AI agent collaboration in distributed Internet of things	Q9/20	TD873 (A.1 TD872-R1)
Recommendation	Y.FML-AISF	Federated machine learning-based artificial intelligence software framework with blockchain-driven edge data sharing	Q9/20	TD875 (A.1 TD874-R2)

Contributions
The full list of Contributions can be found in TD621-R2.

Map of Working Party Meeting reports

	WP1/20	WP2/20	WP3/20
Meeting Report (including a summary of Questions' results) & Work Programme	TD608-R3	TD609-R2	TD610-R2

Map of Question Meeting reports

Question	TD
Q1/20	TD611-R2
Q2/20	TD612-R2
Q3/20	TD613-R2
Q4/20	TD614-R2
Q5/20	TD615-R3
Q6/20	TD616-R2
Q7/20	TD617-R3
Q8/20	TD618-R1
Q9/20	TD619-R1
Q10/20	TD620-R3
Q11/20	ITU-T Study Group 20 has reached consensus to establish a new Question titled “Digital agriculture: from smart farm and production to safe and secure consumption” at this meeting

List of current and future stale work items
TSB provided information on the list of current and future stale work items as contained in TD622. The Rapporteurs of the concerned Questions were encouraged to discuss these work items during their sessions and take appropriate action when needed. TD622-R4 provides information on the results of the discussions concerning the current and future stale work items.

Work Programme
The updated work programme can be found here

Rapporteur group meetings (including e-meetings)

The complete list of planned meetings and e-meetings can be found at: http://www.itu.int/net/ITU-T/lists/rgm.aspx?Group=20&type=interim.

Updates in the ITU-T SG20 management team and Rapporteurs

Click here for the complete list of SG20 management team.

Click here for the complete list of SG20 Rapporteurs and Associate Rapporteurs.

Click here for the complete list of SG20 Liaison Rapporteurs and other representative roles.

TD586-R3 contains the list of SG20 Liaison representatives and other roles.

ITU-T SG20 Regional Groups

TD648 - Management Team of ITU-T SG20 Regional Groups

ITU-T SG20 Regional Group for Africa (SG20RG-AFR)

The last meeting of SG20RG-AFR took place virtually from 29-30 July 2025. The SG20RG-AFR meeting report was presented, as contained in TD562. In line with the updates made to ITU-T SG20 during WTSA-24, the SG20RG-AFR updated its Terms of Reference, as contained in TD563.

ITU-T SG20 Regional Group for the Arab Region (SG20RG-ARB)

It was noted that there are no updates for SG20RG-ARB.

ITU-T SG20 Regional Group for Latin America (SG20RG-LATAM)

The last meeting of SG20RG-LATAM took place from 6-8 May 2025 in Santo Domingo, Dominican Republic. The SG20RG-LATAM meeting report was presented, as contained in TD451. In line with the updates made to ITU-T SG20 during WTSA-24, the SG20RG-LATAM updated its Terms of Reference, as contained in TD452.

ITU-T SG20 Regional Group for Eastern Europe, Central Asia and Transcaucasia (SG20RG-EECAT)

The last meeting of SG20RG-EECAT took place from 9-11 June 2025 in Saint Petersburg, Russian Federation. The SG20RG-EECAT meeting report was presented, as contained in TD454. In line with the updates made to ITU-T SG20 during WTSA-24, the SG20RG-EECAT updated its Terms of Reference, as contained in TD453.

ITU-T SG20 Regional Group for Asia Pacific (SG20RG-AP)

The last meeting of SG20RG-AP took place virtually from 4-5 August 2025. The SG20RG-AP meeting report was presented, as contained in TD564. In line with the updates made to ITU-T SG20 during WTSA-24, the SG20RG-AP updated its Terms of Reference, as contained in TD565.

Joint Correspondence Group on IoT Security (JCG-IoTSec）

WTSA-24 instructed ITU-T Study Groups 17 and 20 to establish a joint coordination or agreement mechanism between the study groups to determine a demarcation line on the topic of Internet of things (IoT) security, and report to TSAG (see WTSA Action [50/1]).

In response, the January 2025 meeting of Study Group 20 agreed to propose the creation of a Joint Correspondence Group on IoT Security (JCG-IoTSec) between Study Groups 17 and 20.

TSAG subsequently endorsed the establishment of JCG-IoTSec and requested the two Study Groups to organize and convene its first meeting, as reflected in the liaison statement contained in TD514.

The inaugural JCG-IoTSec meeting was held on 17 September 2025 in Geneva, co-chaired by Mr Ramy Ahmed Fathy and Mr Bret Jordan. The meeting report is available in document TD924.

Joint Correspondence Group on Trust (Joint-CG-Trust) 

WTSA-24 instructed ITU-T study groups, inter alia Study Groups 13, 17 and 20, to establish a coordination mechanism between the study groups in order to deliberate on the topic of "trust" (including trusted information) and "trustworthiness", and report to TSAG (see WTSA Action [50/2]).

In response, the January 2025 meeting of Study Group 20 agreed to propose the creation of a Joint Correspondence Group on Trust (Joint-CG-Trust) between Study Groups 13, 17 and 20.

TSAG subsequently endorsed the establishment of JCG-Trust and requested the three Study Groups to organize and convene its first meeting, as reflected in the liaison statement contained in TD515.

Since its establishment, JCG-Trust has convened three meetings: on 22 July 2025 (during the SG13 RGM and WP cluster), 14 August 2025, and 20 September 2025 (during the SG20 meeting). JCG-Trust is co-convened by Mr Gyu Myoung Lee, Mr Kishor Narang and Ms Xiaojia Song. A progress report is available in document TD580.

Proposed Correspondence group on Internet of Things identification and Numbering, Naming, Addressing and Identification aspects (CG-Identification) 

WTSA-24 instructed ITU-T Study Groups 2 and 20 to establish a joint coordination or agreement mechanism between the study groups to determine a demarcation line for IoT identification and NNAI aspects, and report to TSAG (see WTSA Action [39A1/1]).

In response, the January 2025 meeting of Study Group 20 agreed to propose the creation of a Joint Correspondence Group on Internet of Things identification and Numbering, Naming, Addressing and Identification aspects (CG-Identification) between Study Groups 2 and 20.

Following this proposal, SG2 outlined various alternatives, as presented in TD655. In this SG20 meeting, SG20 confirmed its support for holding an initial virtual joint meeting between Q1/2 and Q6/20, followed by further consideration of the draft Terms of Reference (TORs) for a possible CG-Identification as contained in TD917-R2.

Collaboration matters and information sharing
The following TDs were presented and noted during the SG20 opening plenary:

TD629 – United for Smart Sustainable Cities (U4SSC)
TD630 – Global Initiative on Virtual Worlds - Discovering the Citiverse and 2nd UN Virtual Worlds Day
TD634 – IEC/ISO/ITU-T SPCG Recommendation on ISO proposal (from IST) for a new Technical Committee on Children's rights management
TD639 – IEC/ISO/ITU-T SPCG Recommendation on ISO proposal (from SAC) for a new Project Committee on Guidelines for Flying motor vehicles
TD650 – Liaison Report of Joint Coordination Activity on Accessibility and Human Factors (JCA-AHF)

Joint Coordination Activity on Internet of Things, digital twins and smart sustainable cities and communities (JCA-IoT, DT and SSC&C) 

The 31st meeting of the JCA-IoT, DT and SSC&C took place on 26 September 2025, under the Chairship of Mr Toru Yamada and Mr Emanuele Nastri. All the meeting documents can be found HERE.

The next JCA-IoT, DT and SSC&C meeting is planned to take place in conjunction with the next SG20 meeting in May 2026.

Promotion activities and bridging the standardization gap

A newcomer training on Contributions took place virtually on 7 July 2025.

Joint Bridging the standardization gap session with SG12 took place virtually on 4 September 2025 and was attended by around 40 participants.

The Forum on Connected by Design: Building Inclusive Digital Infrastructure for Future-Ready Cities, co-organized by ITU and UNU-EGOV, brought together 250 global leaders, city innovators, and digital visionaries for a high-level forum exploring how Digital Public Infrastructure (DPI) can transform cities and communities into more inclusive, resilient, and citizen-centric spaces. The Forum took place on 15 September 2025 in Geneva, Switzerland.

SG20 Newcomer's Session took place on 16 September 2025 in Geneva. Mr Marco Carugi, Q2/20 Rapporteur and ITU-T SG20 Mentor delivered a presentation which is contained in TD627 and are available HRER.

ITU has been organizing the Digital Transformation Dialogues (DTD). DTD offers a dynamic platform to facilitate a deeper understanding of emerging technologies to reshape traditional processes, improve operational efficiency and unlock new possibilities for innovation and standardization. More details can be found HERE. Other digital transformation activities is contained in TD631.

Future events and dates of next ITU-T SG20 meeting

A series of meetings and e-meetings will take place in 2025 and 2026, as contained in TD955-R1;
The next meeting of ITU-T SG20 is planned to take place on 13-22 May 2026 in Geneva and will be collocated with the following events and meetings:

UN Virtual Worlds Day;
Citiverse Assembly;
JCA-MV meeting; and
JCA-IoT, DT and SSC&C meeting.

Executive Summary from previous meetings: 2025-01 | 2024-07 | 2023-09 | 2023-01 | 2022-07