Acknowledgements These Technical Specifications were researched and written by Dave Faulkner (Climate Associates), Paolo Gemma (Huawei), Ziqin Sang (Fiberhome Technologies), N.S. Deepu (Ministry of Communications and Information Technology, India), R.M. Argarwal (Ministry of Communications and Information Technology, India), Flavio Cucchietti (Telecom Italia), Leonidas Anthopoulos (Technological Education Institute of Thessaly, Greece), John Faulkner (Environment Agency, United Kingdom), Nilesh Kumar Purey (Gujarat International Finance Tec‐City Co. Ltd., India), Satish Kamat (Lavasa Corporation Limited, India), Neeraj Mishra (Telecommunication Regulatory Authority, India) and Keith Dickerson (Climate Associates), as a contribution to ITU‐T Focus Group on Smart Sustainable Cities (FG‐SSC). Additional information and materials relating to this report can be found at: www.itu.int/itu‐t/climatechange. If you would like to provide any additional information, please contact Cristina Bueti at tsbsg5@itu.int.