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Fuel consumption simulation of HDVs in the EU: Comparisons and limitations

The CO2 certification procedures for HDVs in the EU and the United Stated use a combination of component testing and vehicle simulation to assign official CO2 emission and fuel consumption values....
Published 2018.03.06: Publication

Air quality and health benefits of improved fuel and vehicle emissions standards in Mexico

At the North American Leaders Summit (NALS) in June 2016, the heads of the governments of Canada, Mexico, and the United States agreed to “commit to reduce air pollutant emissions by aligning air...
Published 2018.01.03: Publication

Comments regarding EPA glider truck proposal, December 2017

Oral and written comments by Rachel Muncrief at a public hearing on the EPA proposal to repeal emission requirements for glider vehicles, glider engines, and glider kits established in the Phase 2...
Published 2017.12.06: News

Scott Pruitt’s EPA wants to resurrect the dirty diesel

Can’t get enough of zombie movies? Well, get ready for a real-life version. Scott Pruitt’s EPA is bringing the oldest and dirtiest diesel engines back from the dead—but disguising them in a shiny new...Additional NOx emissions from gliders under the Pruitt proposal would be 13 times what the impact of the Volkswagen fraud in the U.S. would have been had it gone undetected.
Published 2017.12.01: Blog Post

Glider industry petition in support of glider trucks debunks itself

It's not the most important or even the worst thing about the Pruitt EPA's proposal to reverse course on closing a loophole in the emissions regulations for heavy-duty vehicles that left "gliders"—...The summary of a "study" that the glider industry used to support its claim that EPA was wrong about how dirty gliders are is fingernails-on-a-chalkboard aggravating.
Published 2017.11.29: Blog Post

Zero emission buses are worth reaching for, but emission performance standards are the low-hanging fruit

Sales of battery electric buses (BEBs) are surging in major cities around the world. Los Angeles, California committed to shift its 2,200 bus fleet to zero-emission buses (including BEBs) by 2030,...Sales of battery electric buses are surging, yet a complete technology transition won't happen overnight. Meanwhile, tightening emission standards on conventionally powered buses would have immediate...
Published 2017.11.16: Blog Post

Status of policies for clean vehicles and fuels in select G20 countries

Realizing the immense opportunity to promote energy efficiency in their economies, G20 economies adopted an Energy Efficiency Action Plan that identified six focus areas for collaborative activity,...
Published 2017.08.15: Publication

Proposed second-phase greenhouse gas emission standards for heavy-duty engines and vehicles in Canada

On March 4, 2017, Environment and Climate Change Canada published proposed standards to reduce greenhouse gas (GHG) emissions from new on-road heavy-duty vehicles. These Phase 2 regulations would...
Published 2017.06.15: Publication

Vehicle and fuel standards can dramatically reduce air pollution in Brazil, São Paulo’s air quality data demonstrate

São Paulo’s Environmental Agency, CETESB, announced in February 2017 that new heavy-duty vehicle emissions standards will take effect in Brazil starting in 2019, and as we discussed here, the next...Implementing P-8 (Euro VI-equivalent) standards for trucks and buses might be the most cost-effective way to improve air quality, not just in São Paulo but nationwide. The benefits associated with P-...
Published 2017.05.31: Blog Post

Impacts and mitigation of excess diesel NOx emissions in 11 major vehicle markets

A new study published online May 15 in the journal Nature quantifies the global health and environmental burden of real-world diesel NOx emissions in 11 major vehicle markets. The study found that...
Published 2017.05.22: Event

Euro VI para o Brasil: um caminho claro para céus mais limpos

English version Em fevereiro deste ano, a CETESB anunciou novas fases para os padrões de emissões veiculares, começando com veículos pesados em 2019 e motocicletas em 2020. Padrões para veículos...Em Fevereiro, a CETESB anunciou novas fases para emissões de veículos pesados, leves e motocicletas no Brasil. Esse é um momento oportuno para salientar os grandes benefícios para o Brasil com um...
Published 2017.04.14: Blog Post

Effect of P-8 standards on bus system costs in Brazil

Brazil has controlled harmful pollutant emissions from heavy-duty vehicles (HDVs), including trucks and buses, through a series of progressively more stringent vehicle emissions standards put in...
Published 2017.04.14: Publication

Euro VI for Brazil: A clear path for cleaner skies

Versão em Português In early February, CETESB, São Paulo’s Environmental Agency, announced new phases for Brazil’s vehicle emission standards, starting with heavy-duty vehicles (HDVs) in 2019 and...In early February, CETESB announced new phases for Brazil’s vehicle emission standards for HDVs, LDVs, and motorcycles. This is an opportune moment, then, to highlight the significant benefits that...
Published 2017.03.13: Blog Post

Impacts of world class vehicle efficiency and emissions regulations in select G20 countries

In 2014, the G20 Energy Efficiency Action Plan prioritized the establishment of a Transport Task Group (TTG) to promote cooperation among participating G20 countries to develop domestic policies that...
Published 2017.01.25: Publication

Brazil’s vehicle fleet renewal program should aim to benefit from others' successes, and their mistakes

As Brazil’s economic crisis drags on, the Ministry of Development, Industry and Foreign Trade (MDIC) has begun to talk up a road vehicle scrappage program as a means of stimulating production in the...Explains why first-phase fleet renewal program in Brazil could be most effective if it focused on removing old diesel heavy trucks and buses from the roads, in particular those older than 14 years...
Published 2016.11.10: Blog Post

Leapfrogging an outdated standard puts India on par with global leaders in control of vehicle emissions

On September 16, 2016 the Government of India took an important step towards addressing the country’s severe air pollution problems with the final notification of Bharat Stage (BS) VI emission...The adoption of Bharat Stage VI emission standards will significantly reduce air pollutant emissions from vehicles sold in India beginning in 2020. However, changes in the final rule notification...
Published 2016.10.11: Blog Post

Technology pathways for diesel engines used in non-road vehicles and equipment

Internal combustion engines are ubiquitous in today’s society. Applications for these engines cover a broad spectrum, ranging from vehicles that transport passengers and move goods to specialized...
Published 2016.09.16: Publication

Common ground on clean transportation

On June 29, 2016, President Obama, President Peña Nieto, and Prime Minister Trudeau laid out a formidable shared agenda at the North American Leaders’ Summit on a disparate set of issues that ranged...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...
Published 2016.07.14: Blog Post

China's latest step forward on vehicle emissions regulation

On June 6–7, the Eighth Round of the U.S.–China Strategic and Economic Dialogue was held in Beijing. The two nations are making remarkable progress toward reducing the environmental and energy impact...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...
Published 2016.07.11: Blog Post

Technical background on India BS VI fuel specifications

The proposed Bharat Stage (BS) VI regulation for on-road vehicles in India includes contains both emission standards for new vehicles as well as specifications for reference and commercial gasoline...
Published 2016.04.22: Publication