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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.

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Heavy-duty vehicle fuel-efficiency simulation: A comparison of US and EU tools
Discusses the use of computer simulation to certify whole-vehicle efficiency of HDVs, and compares tools used to quantify HDV CO2 emissions in the US (GEM v2.0) and EU (VECTO v2.0.3 beta; not yet used in a regulatory context).
White paper
Early adoption of China 5/V vehicle emission standards in Guangdong
Guangdong province becomes the third region in China to move from China 4/IV to China 5/V standards on an advanced schedule, though with a 9- to 12-month postponed timeline announced on March 27, 2015.
Policy update
Testing methods for heavy-duty vehicle fuel efficiency: Trends and implications for India
Analysis of testing and certification methods employed in HDV efficiency regulations worldwide, to identify test methods most appropriate for India's initial regulation in this policy area.
Working paper
 

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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