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Global passenger vehicle standards

Nine governments worldwide—Japan, the European Union, United States, Canada, China, South Korea, Mexico, Brazil, and India—have established or proposed fuel economy or greenhouse-gas emission standards for passenger vehicles and light-commercial vehicles/light trucks. The regulations in these markets, covering 80 percent of global passenger vehicle sales in 2013, influence the business decisions of major vehicle manufacturers around the world, and are among the most effective climate-change mitigation measures to have been implemented over the past decade.

These governments have taken differing approaches to designing their regulations, using different drive cycles and vehicle certification test procedures. Converting the standard values—that is, the fuel efficiency mandates or emissions limits—between different regulations involves not just converting physical units but also accounting for the impacts of differences in test cycles.

Since 2007, the ICCT has maintained a set of data tables, comparison charts, and a conversion tool as a ready reference to worldwide passenger vehicle fuel efficiency standards, with the aim of comparing the relative stringency of regulations as accurately and fairly as possible. The increasingly urgent need for effective policies on climate change mitigation and energy efficiency has only underscored the importance of accessible. reliable, and fair benchmarking across jurisdictions.

In 2014 we comprehensively updated the methodology underlying those resources. See here for summary overview of those updates, and here for a detailed description of the methodology. The results are reflected in our library of comparison charts, and in the modified Excel-based conversion tool (links at right).