An increasing number of cities and mobility operators and providers report on annual carbon emissions to create better insight on their carbon footprint and to track their progress towards meeting carbon reduction goals. Principles for Reporting Emissions from Urban Mobility presents seven principles to help ensure that emissions intensity accounting and reporting for urban mobility trips becomes more standardized, consistent and comparable. The principles are primarily aimed at decision-makers at mobility operators and providers and cities, providing them with guidelines and recommendations when accounting for operational emission intensities.