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

Review and evaluation of vehicle fuel efficiency labeling and consumer information programs
A comprehensive evaluation of the effectiveness of vehicle fuel efficiency labelling across a wide range of economies. (Commissioned from the ICCT by the Asia-Pacific Economic Cooperation).
Consulting report
Real-world fuel consumption of popular European passenger car models
Compares official fuel consumption values with real-world performance for 20 popular vehicle models. Officially, fuel consumption gains in these 20 models ranged from 8% to 30%. But on-road measurements indicate that 8 of the 20...
Working paper
The European Real-Driving Emissions Regulation
In January 2016 the EU Parliament will evaluate the RDE proposal from the European Commission's Technical Committee on Motor Vehicles (TCMV). This brief notes five things that could strengthen the regulation.
Briefing
 

News

News

Pinpointing weaknesses in Europe's vehicle emissions testing scheme to point the way toward a more effective and robust program [press release]
A side-by-side comparison of the vehicle emissions testing...

New revelations of Clean Air Act violations by Volkswagen [press statement]
The International Council on Clean Transportation once again...

China's commitment to improving heavy-duty vehicle efficiency [Press statement]
Last Friday, during President Xi Jinping’s visit to...

FAQ: In-use NOx emissions from diesel passenger cars
As the story concerning in-use NOx emissions from diesel...

From the ICCT Blogs

Turning over a new leaf: Electric vehicle carbon emissions
EV sales are up globally, and electrical grid emissions keeping getting lower.
Staff Blog
Promoting electric vehicles in Korea
Together, the direct subsidies and both national and local tax incentives available to BEV buyers add up to a substantial monetary benefit of almost 4.2 million won (~$3,818).
Staff Blog
Naughty or nice? Automakers and US efficiency standards
Helping out old St. Nick, as he's making his list and checking it twice, with the new vehicle efficiency data in the EPA’s 2015 Trends and Manufacturer Performance reports.
Staff Blog

The Staff

Anup Bandivadekar
Anup Bandivadekar
Program Director / India Lead
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