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Summarizes and evaluates key elements of the November 2017 European Commission proposal as it goes to the European Parliament and the European Council.

The modifications required by US regulators to VW diesel engines designed to cheat emissions tests are more stringent and more effective than in Europe.

Summarizes policies and actions that are expanding access to electric transportation in the United States and showcases several examples of equity-focused electric mobility practices that are encouraging their utilization more widely. 

2015.06.25

Summary of the rationale for supporting engine-based standards in the first phase HDV fuel efficiency regulation in India.

Publication: Briefing
2015.04.03

Overview of key technologies and best practices, with recommendations for future research.

Publication: Briefing
2015.03.05

Details options for and benefits of leapfrogging the Euro 5/V LDV/HDV vehicle emissions standards, and instead progressing directly from Euro 4/V to Euro 6/VI.

Publication: Briefing
2015.03.02

HDVs conforming to Euro IV and V standards frequently show poor real-world NOx emissions performance. Evidence indicates that new certification protocols in Euro VI resolve this problem, and Euro VI-compliant HDV NOx emissions meet expectations.

Publication: Briefing
2014.12.10

Summary of technologies and policies to reduce direct emissions from cars, trucks, and buses, drawing on examples of other megacities' policy initiatives in the areas of clean fuels, new vehicle emission standards, and in-use vehicle programs.

Publication: Briefing
2014.06.13

Expands on the European Environment Agency's recently published provisional data for CO2 emissions from passenger cars sold in the EU in 2013, which shows that average emissions fell to 127 g/km, below the 2015 target.

Publication: Briefing
2014.05.08

Concise summary of a key component in the compliance mechanism of the RFS2.

Publication: Briefing
2014.03.07

Explains how compliance credit trading under the US CAFE standard is managed and executed in practice.

Publication: Briefing
2014.02.11

Concise overview of the RFS: history and current implementation, proposed reductions in 2014 volumes, biofuels categories, credit trading system.

Publication: Briefing
2013.10.01

Brazil has moved to control vehicle emissions, and early deaths from exposure to vehicle emissions are projected to decline by 50 percent in 2030. But if Brazil were to adopt best-practice controls on vehicles and fuels, it could cut health impacts by an additional two-thirds.

Publication: Briefing

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