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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Status of policies for clean vehicles and fuels in select G20 countries
Reveals that the efforts made by multiple Transport Task Group (TTG) countries to promote and support policies and programs—including stringent tailpipe emissions standards, fuel economy standards, low sulfur fuels, and green...
Briefing
Cost–benefit analysis of early implementation of the China 6 light-duty vehicle emission standard in Guangdong Province
Reviews the costs and benefits that would result from implementing the China 6 light-duty vehicle emission standard in Guangdong Province with a recommended timeline earlier than the national plan (2023). The authors conclude...
Working paper
Too low to be true? How to measure fuel consumption and CO2 emissions of plug-in hybrid vehicles, today and in the future
Outlines the current procedure for the determination of fuel consumption, carbon dioxide (CO2) emissions, electric energy consumption, and electric range, specifically for PHEVs in Europe, highlights the most relevant changes...
Briefing
 

From the ICCT Blogs

New energy efficiency target for cars could help Brazil compete in international markets
Aligning Brazil's new-car efficiency target with the European Union’s target would have substantial benefits for consumers. Compared to a car meeting Inovar-Auto's 2017 target, the average new car sold in 2023 could reduce fuel costs more than 4,000 USD over the lifetime of the vehicle, equivalent to 2.4 times the cost of additional vehicle technology.
Staff Blog
Like magic! How to make high vehicle CO2 emissions simply disappear
On June 26, the BMVI finally published the CO2 measurement results we had been waiting for. But in the interim the Ministry re-tested 29 of the original vehicle models. Only a subset of those results, data on 19 out of the 29, was published and in many cases, the vehicles show lower CO2 emissions during the retest than according to their official type-approval value. Those are impressively good results—and strikingly different than the initial results from 2016.
Staff Blog
Germany's G20 leadership could expand international cooperation on vehicle efficiency
At the next G20 Summit in July in Hamburg, Germany can lay the groundwork to achieve substantial energy savings and environmental benefits in three important ways.
Staff Blog

The Staff

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