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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. 

2017.02.08

Reviews the structure of EPA’s emission recall program for light-duty vehicles and trucks (LDV and LDT) and its effectiveness over time and also explains the recall authority, procedures, and coordination among offices.

Publication: Briefing
2017.01.05

Identifies key differences in the regulations governing certification of NOx emissions from diesel cars (Euro 6) and trucks (Euro VI) that help explain differences in their real-world emissions performance. Ultimately, an examination of the HDV regulation reveals insights that could be used to improve the LDV regulation.

Publication: Briefing
2016.12.22

This technical brief highlights important innovations and trends in downsized and turbocharged gasoline engines, several of which were not considered when the 2025 CAFE standards were finalized, but promise to be quite cost-effective.

Publication: Briefing
2016.11.21

A concise overview of the EU's vehicle CO2 emission reduction requirements, targets for 2025–2030 that are coming under consideration, and current best projections of vehicle-specific CO2 reduction technology potential and costs in that time frame.

Publication: Briefing
2016.11.15

Highlights developments in technologies that contribute to vehicle fuel efficiency by improving control of heat in the powertrain and the passenger cabin. Few thermal management technologies were explicitly incorporated into the technology projections for the US 2025 CAFE standards.

Publication: Briefing
2016.10.26

One in a series of technical briefs highlighting important innovations and trends in transmissions, which, overall, are similar to efficiency benefits and cost projections made at the time the 2025 CAFE standards were finalized.

Publication: Briefing
2016.07.01

Comprehensive technical overview of the Euro 6/VI vehicle emissions standards, looking at the historical context of the European regulations and considering what is likely to come next.

Publication: Briefing
2016.06.22

Summary of provisional data from the European Environment Agency. Average CO2 emissions from new cars sold in the EU in 2015 were 119.6 g CO2/km, 8% below the 2015 target and 3% lower than in 2014.

Publication: Briefing
2016.06.21

One in a series of technical briefs highlighting important innovations and trends in "conventional" automotive technologies, which are significantly outpacing projections made at the time the 2025 CAFE standards were finalized.

Publication: Briefing
2016.06.07

Makes recommendations for how India should use checks of on-board diagnostic systems (OBD) to identify malfunctioning emissions control systems in new vehicles and to lower the burden on the country’s testing facilities.

Publication: Briefing

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