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United for Smart Sustainable Cities (U4S…

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About

Latest meetings

Thematic groups

U4SSC KPI Project

U4SSC Hub

Publications

Contact

FAQs

About ITU

Radiocommunication

Standardization

Development

The United for Smart Sustainable Cities (U4SSC) initiative is a global UN collaboration, coordinated by ITU, UNECE and UN-Habitat, and supported by a network of key partners, including UN-Habitat, CBD, ECLAC, FAO, UNDESA, UNDP, UNECA, UNESCO, UNEP, UNEP-FI, UNFCCC, UNIDO, UNITAR, UNOP, UNU-EGOV, UN-Women, UNWTO, and WMO.

U4SSC serves as an international platform for exchanging knowledge and fostering partnerships to empower cities and communities in achieving the UN Sustainable Development Goals.

Under the leadership of the Chair, Dr. Okan Geray (Digital Dubai), and Vice-Chairs, U4SSC is steering the future of people centred smart cities. Learn more about the U4SSC Management Team here.

The ninth U4SSC meeting took place virtually on 31 October 2025. A Special Session on U4SSC took place on 5 November 2025 in Barcelona, Spain, on the margins of the Smart City Expo World Congress.

Join U4SSC today and help build the cities and communities of tomorrow!

Thematic Groups

The U4SSC thematic groups are at the forefront of shaping the future of smart, sustainable cities. These expert-driven groups develop actionable plans, technical specifications, case studies, and guidelines, providing cities with the tools and policy guidance they need to enhance their sustainability and accelerate their digital transformation. By offering tailored solutions and insights, U4SSC helps cities around the world become more efficient, innovative, and people-centred—paving the way for a smarter, greener future.

Join the movement and transform your city with U4SSC!

KPIs for Smart Sustainable Cities

The U4SSC Key Performance Indicators (KPIs) are a recognized UN standard for cities focused on achieving the UN Sustainable Development Goals (SDGs). These KPIs provide a comprehensive framework that helps cities and communities worldwide assess and improve their levels of smartness and sustainability, with an emphasis on creating people-centred smart cities that prioritize the well-being of citizens.

Adopted by over 250 cities globally, the U4SSC KPIs are empowering cities and communities to become more sustainable, innovative, and responsive to the needs of their inhabitants.

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Latest U4SSC Publications

Explore our latest publications on topics such as autonomous cities, smart sustainable cities, digital wellbeing, digital public infrastructure, net zero, people-centered cities, artificial intelligence in cities, and data/API requirements for centralized smart city platforms.

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U4SSC Hubs

The U4SSC Hubs provide a unique platform to accelerate cooperation between public and private sector and helps facilitate the digital transformation in cities and communities, while enabling technology and knowledge transfer. It will connect the private sector ranging from start-ups and multi-nationals as well as universities and research institutions, creating truly a one-of-a-kind hub.

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The International Telecommunication Union (ITU) brings together 194 national governments and over 1,000 companies and organizations to advance global connectivity.

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