Based on other ITU-T L.14xx-series of Recommendations, this Recommendation aims at providing guidance for the assessment of ICT-related greenhouse gas (GHG) emissions and energy consumption at city level. This Recommendation provides a framework for the quantitative assessment at city level of first and second order effects of ICT. It also gives some guidance on how to qualitatively assess other effects.

More specifically, this Recommendation can be used to assess the first order effects of the use of ICT in organizations and households, as well as its first and second order effects when applied to different industrial sectors such as transport, buildings, utilities and waste management.

For the second order effects, it is not expected that the overall second order effects of all ICT at city level is assessed. Rather, this Recommendation provides guidance on how to assess the second order impact of one or more ICT projects or ICT services at the scale of the city.

This Recommendation, in line with [ITU-T L.1400], is focused on energy consumption and GHG emissions.

This Recommendation is intended for city authorities, policy-makers, environment and ICT experts and the industry and planning authorities, and can be used to guide the assessment of ICT-related GHG emissions and energy consumption at a city level.