tools for policy & research

In a world where informed decisions are paramount, our tools aim to bridge the gap between aspiration and execution. We invite you to explore our existing tools and stay tuned for exciting updates as we continue to build a comprehensive toolkit to inform your policy decisions.

Passenger Vehicle Greenhouse Gas Emissions and Fuel Consumption

Twelve countries worldwide have established or proposed fuel efficiency and greenhouse gas emission standards for passenger vehicles and light commercial vehicles, covering over 80% of global passenger vehicle sales. These regulations significantly influence the decisions of major vehicle manufacturers and have been effective climate change mitigation measures in the last decade. To facilitate comparison and compliance, the International Council on Clean Transportation (ICCT) has maintained data tables and conversion tools since 2007, with updates in 2014, to ensure accurate benchmarking of these regulations across jurisdictions, highlighting their increasing importance in addressing climate change and energy efficiency.

Zero-Emission Vehicles Phase-ins

Our phase-in maps detail the global progress in transitioning towards zero CO2 emission vehicles. Analyzed sectors in passenger cars, vans, light trucks, medium and heavy-duty trucks, and buses, highlighting the governments’ official targets for phasing in 100% sales of these zero-emission vehicles by specified dates, up to October 2023. Additionally, the maps explore zero-emission zones (ZEZs) implemented and planned in cities worldwide. provides comprehensive, up-to-date, and sourced information on energy and environmental regulations in the transportation sector worldwide, with a focus on vehicles and fuels.

European Vehicle Market Statistics Pocketbook

The 2022/2023 edition of European Vehicle Market Statistics offers a statistical portrait of passenger car, light commercial, and heavy-duty vehicle fleets in the European Union from 2001 to 2021. The emphasis is on vehicle technologies and emissions of greenhouse gases and other air pollutants. Brief introductions to each chapter note important trends and provide selected comparisons to other large vehicle markets.

Official Fuel Efficiency and CO2 Emission Data Sources

This resource lists public, online sources of fuel efficiency and CO2 emission data, collected and published by regulatory agencies, for vehicles sold or registered under their jurisdiction.

chart showing the bonus-malus program in France

Feebate Simulation Tool

Feebate systems are one of the best available policy options to reduce passenger car emissions. Feebate systems impose a fee on vehicles with high CO2 emissions or fuel consumption (i.e., low fuel economy) and provide a rebate to vehicles with low CO2 emissions or fuel consumption (i.e., high fuel economy). Feebate systems can be designed to be revenue-neutral. They are an especially good option for developing or transitional countries that import most of their vehicles rather than manufacturing them locally, or that have not yet adopted standards.

This simple, robust, Excel-based feebate simulation tool is designed to help users create the best feebate system for their country or region with only a modest amount of input data. It provides users insight into various alternative policy options within the feebate system. Output graphs illustrate the impacts of different design choices on both vehicle emissions and government revenues and expenditures. These, in turn, can assist users of the tool in national-level policy discussions and actual feebate design.

An accompanying user guide provides instructions on how to use the tool, as well as background information on feebate schemes, design options, and discussion of the pros and cons of different designs.

chart showing the bonus-malus program in France

Elektromobilität und soziale Teilhabe in Deutschland

Aus klimapolitischer Sicht spielt der Übergang von Verbrenner-Pkw zu batterieelektrischen Pkw, hier kurz „Elektro-Pkw“, eine wesentliche Rolle bei der Dekarbonisierung des deutschen Verkehrssektors. Dabei ist es wichtig, die soziale Gerechtigkeit im Blick zu haben, damit alle Bevölkerungsgruppen an diesem Übergang teilhaben können.

Der ICCT-Monitor „Elektromobilität und soziale Teilhabe“ analysiert die Entwicklung des Pkw-Markts in Deutschland aus sozialer Sicht. Grundlage sind Daten zu Neuzulassungen und Beständen von Pkw sowie öffentlicher Ladeinfrastruktur, Kostenvergleiche von Pkw sowie Auswertungen von politischen Maßnahmen zu sozial gerechten Förderung von Elektro-Pkw.

chart showing the bonus-malus program in France


This tool is designed for port operators and regulators to do emissions inventories.