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

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.
Working paper
Electric Vehicles: Literature review of technology costs and carbon emissions
Aims to inform the debate over how electric vehicle technology could fit into a lower-carbon new-vehicle fleet in Europe in 2020–2030. Although the analysis is focused on Europe, similar technology, policy, and market dynamics...
Working paper
A technical summary of Euro 6/VI vehicle emission standards
Comprehensive technical overview of the Euro 6/VI vehicle emissions standards, looking at the historical context of the European regulations and considering what is likely to come next.
Briefing
 

News

News

Draft Technical Assessment Report shows U.S. 2025 light-duty vehicle GHG/CAFE standards are firmly on track [press statement]
July 18, 2016—The technical assessment released today by...

Comments on RFS 2017-2018
ICCT comments to the U.S. EPA on proposed volumes for the...

Volkswagen consent decree is a historic milestone [Press statement]
28 June 2016—The consent decree announced today by the...

Press statement: Joint India/U.S. statement on climate and clean energy
8 June 2016—The joint statement yesterday on a wide range...

From the ICCT Blogs

Taking stock of the VW settlement agreement
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.
Staff Blog
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. 
Staff Blog
China's latest step forward on vehicle emissions regulation
The newly announced implementation timeline of the China 6/VI vehicle emission standard will accelerate the introduction of the most stringent emission reduction requirements and advanced emission control technologies.
Staff Blog

The Staff

Anup Bandivadekar
Anup Bandivadekar
Program Director / India Lead
Vicente Franco
Vicente Franco
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