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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Recently Released

U.S. EPA recall program for light-duty vehicles and light-duty trucks
Reviews the structure of EPA’s emission recall program for light-duty vehicles and trucks (LDV and LDT) and its effectiveness over time and also explains the recall authority, procedures, and coordination among offices.
Briefing
Impacts of world class vehicle efficiency and emissions regulations in select G20 countries
Characterizes the climate and health benefits of adopting world-class standards for new vehicle efficiency/CO2 and conventional pollutant emissions in all members of the G20 Transport Task Group.
Report
Real-Driving Emissions test procedure for exhaust gas pollutant emissions of cars and light commercial vehicles in Europe
Provides background information and a detailed overview of the RDE legislation, as well as a discussion of its strengths and areas for improvement.
Policy update
 

From the ICCT Blogs

Lessons learned from Sweden’s electric vehicle rollercoaster
Although the Swedish government is planning to introduce a feebate program in 2018, which will likely bring an end to the EV market rollercoaster, other countries can learn a valuable lesson from the Swedish rebate program: dependable policies are key to steady EV market growth.
Staff Blog
Why are EU manufacturers claiming their defeat devices are not defeat devices?
PSA has admitted to changing emission control calibrations under normal driving—but denies using banned engine software. The gaming of defeat device regulations has gone on for far too long in the EU. It's time for the charade to stop.
Staff Blog
No, fuel economy standards do not put a million US jobs at risk
Ford CEO Mark Fields has to know that the US fuel-economy rules are already designed to “align with market reality.” Maybe he doesn't know that a study he's relying on for his numbers is discreditable.
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 Co-Lead
Fanta Kamakaté
Fanta Kamakaté
Chief Program Officer
Peter Mock
Peter Mock
Europe Managing Director / EU Lead
Peter Slowik
Peter Slowik
Associate Researcher