programs / Heavy-duty vehicles


The steady growth in freight transport by truck presents a challenge to efforts at reducing hazardous air pollution and greenhouse gas emissions. Though most countries have fuel economy standards for passenger vehicles, as of 2011 only Japan and the United States have set efficiency and GHG emission standards for heavy-duty vehicles.

Most heavy-duty vehicles are powered by diesel engines that, without pollution controls, can emit high levels of other pollutants that contribute to global warming  and local air pollution.  For example, uncontrolled diesel vehicles produce high levels of particulate matter, a fraction of which has a warming effect, and nitrogen oxides, which are an ingredient of ozone (also known as smog), an important greenhouse gas. These pollutants are associated with bronchitis, asthma, and other lung diseases, and are responsible for millions of premature deaths worldwide. In 2013, the World Health Organization classified diesel exhaust as carcinogenic to humans, based on evidence of an increase in lung cancer after long-term exposure.

Featured Work



Recently Released

European vehicle market statistics, 2015/2016
Annual statistical portrait of technologies, fuel consumption, and GHG and pollutant emissions in Europe's passenger car, light-commercial, and heavy-duty fleets.
Constant-speed fuel consumption testing of heavy-duty vehicles in India
Proposes engine-based standards coupled with a tire efficiency regulation as the best approach for the first phase of India's HDV efficiency standards. 
Review of Beijing's comprehensive motor vehicle emission control programs
Emissions from on-road vehicles are a significant cause of air pollution in urban areas. Beijing, where air quality has historically been poor, is taking measures to reduce emissions from the transport sector.
White paper



E.P.A. to Unveil New Limit for Smog-Causing Ozone Emissions
The new rule, set at the weakest standard in the range...

arbcombo -- Regional Workshops to discuss a draft Short-Lived Climate Pollutant Strategy
The Air Resources Board (ARB or Board) will hold workshops to...

India submits its climate action plan, asks rich nations to cooperate in achieving its goal
India on Thursday submitted its 'climate action plan' to a UN...

arbcombo -- 2015 Haagen-Smit Clean Air Awards - Nominations Now Being Accepted
If you know someone in the air quality community scientists,...

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

Krisis, the Greek goddess of decreasing vehicle CO2 emissions
What has happened to all the huge SUVs that used to lurk in the streets of Thessaloniki? Where are all the noisy sport cars?
Staff Blog
The future of vehicle emissions testing in Europe (and beyond)
To solve the problem underlying the growing gap between certification-test and in-use CO2 and NOx emissions, we will have to go beyond just introducing a new test procedure.
Staff Blog
The miseducation of the diesel car
The preliminary agreement on the EU's Real-Driving Emissions regulation is a missed opportunity to address the air-quality problem by forcing the technological adjustments required to bring real emissions and legal limits in line.
Staff Blog

The Staff

Fanta Kamakaté
Fanta Kamakaté
Chief Program Officer
Nic Lutsey
Nic Lutsey
Program Director / US Co-Lead
Rachel Muncrief
Rachel Muncrief
Heavy-Duty Vehicles Lead
Benjamin Sharpe
Benjamin Sharpe
Senior Researcher / Canada Lead