programs / Passenger Vehicles

Translate

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.

Featured Work

Events

SEE ALL EVENTS

Recently Released

New light commercial vehicles in China, 2010: Technology assessment and international comparisons
Assesses fuel consumption and fuel-efficiency technology adoption in China’s LCV market in 2010, focusing on differences among vehicle sub-categories and manufacturers, and compares fleet features and technologies in the U.S.,...
White paper
Real-world exhaust emissions from modern diesel cars
Documents the discrepancy between type-approval and real-world NOx emissions from new diesel passenger cars. On average, on-road NOx emissions from the vehicles tested for this analysis were about seven times higher than the...
White paper
From laboratory to road: A 2014 update
Extends an analysis of the gap between official and real-world fuel consumption and CO2 emissions for passenger cars in Europe, which reached 38% in 2013 and continues to grow at an accelerated pace.
White paper
 

News

News

Electric cars offer a lot of bang for your buck
Fuel economy (combined): 35. Annual fuel cost (15,000 mi.): $1,...

Saturday letters: Clean air, Natalie's story, health care, Ebola, voter ID
He goes on to list the numerous ways that tighter emissions...

Road Test: 2015 Honda CR-V
But the real gains come in fuel economy. The standard front-...

Kenworth T680 Produces Mountain of Savings for Mountain River Trucking
When it came time earlier this year to replace the majority of...

From the ICCT Blogs

Will GDI engines mean higher particulate emissions? Thanks to already-enacted Tier 3 standards, no
Concerns that engines using gasoline direct injection produce higher particulate emissions overlook two things: the engineering solutions to the problem are already known, and EPA's Tier 3 regulation, which takes effect in 2017, will require them.
Staff Blog
Canada's Environment Minister announces new regulatory measures for vehicles and fuels
Three new regulatory initiatives announced by Minister Leona Aglukkaq will reduce GHG emissions and improve the environmental performance of both the light- and heavy-duty vehicle fleets.
Staff Blog
A trend that can’t continue: The gap between official and real CO2 reductions from Europe’s passenger car fleet keeps growing
We've just released an update to our study of the discrepancy between offiical and real-world CO2 emissions from passenger cars in the EU. The bad news: the gap continues to increase, and at an accelerating rate: for private cars it rose to 31 percent in 2013, and for company cars (a large proportion of the fleet in Europe) the gap is even greater, 45 percent in 2013.
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