programs / Passenger Vehicles

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The reductions in passenger vehicle emissions that have been achieved since the mid-twentieth century are a great environmental success story. Government regulation of tailpipe emissions and private investments in breakthrough technologies such as the three-way catalytic converter have reduced emissions of nitrogen oxides, carbon monoxide, and hydrocarbons by 75 to 90 percent at a relatively small cost to consumers. Since California first established emission standards for passenger vehicles in the 1960s, different regulatory approaches have been adopted by the United States, Japan, and Europe, and each has been emulated to some degree in other parts of the world. Significant work remains to replicate these successes throughout the rest of the global fleet.

The massive impact of passenger vehicles on climate also remains to be addressed. The transportation sector is responsible for about one-quarter of energy-related greenhouse gas emissions worldwide. Passenger vehicles account for just under half of this total, and will remain the predominant source of these emissions for the foreseeable future.

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Reducing vehicle emissions in Turkey
Details how implementing well-tested policy measures can help drive forward the necessary innovations and could reduce the total CO2 emissions of the LDV fleet in Turkey by about 36% compared to a business-as-usual scenario.
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Legal note from Défense Terre analyzing the U.S. vehicle emissions regulation and associated guidance documentation and proposing areas where the European Union's type approval framework text could benefit from improved language...
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Improving emission standards compliance with a defect reporting system for in-use passenger vehicles
Details how emission control defect reporting programs are used to improve compliance with passenger vehicle emission standards.
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From the ICCT Blogs

The power of vehicle taxation schemes
Changing the vehicle taxation scheme in Turkey from one based on engine displacement to one that uses CO2 emissions as the underlying metric would help to overcome the current market hurdle for low-emission vehicles.
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Considering how much the likelihood of discovery and the magnitude of the consequences have increased in just nine months, it’s safe to say that the odds in favor of a genuinely cleaner transportation sector have gotten dramatically better.
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Common ground on clean transportation
Aligning standards throughout North America allows the U.S., Mexico, and Canada to take advantage of the economic and market integration of the region to meet shared goals for climate, air quality and health, at the lowest possible cost. 
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The Staff

Anup Bandivadekar
Anup Bandivadekar
Program Director / India Lead
Yoann Bernard
Yoann Bernard
Real World Emissions Researcher
John German
John German
Senior Fellow / US Co-Lead
Hui He
Hui He
Senior Policy Analyst / China Co-Lead
Fanta Kamakaté
Fanta Kamakaté
Chief Program Officer
Peter Mock
Peter Mock
Europe Managing Director / EU Lead
Peter Slowik
Peter Slowik
Associate Researcher