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Survey-based summary of regulatory agencies' programs to monitor and enforce compliance with vehicle emission and fuel consumption standards.

Describes trends in global ship activity and emissions for the years 2013 to 2015 and finds that emissions generally increased over this period, with efficiency improvements more than offset by increases in activity.

Addresses the opportunities for facilitating, and the barriers to financing, the transition to soot-free urban bus fleets in 20 megacities.


The availability and low cost of natural gas, less stringent new engine emissions standards, and fuel sulfur levels that inhibit the use of the most advanced diesel engines all contribute to a continued high level of interest in CNG vehicles in many developing countries.

Publication: Report

Summarizes one of the most promising fiscal policy tools available to complement vehicle emissions standards: so-called feebate programs, in which more efficient vehicles receive rebates and less efficient vehicles are assessed fees.

Publication: Report

Final report of the California ETAAC Advanced Technology Sub-Group.

Publication: Report

Estimates the sales and activity-weighted efficiency of new jet aircraft from 1960 to 2008 to argue that fuel price has been an inconsistent driver of aircraft efficiency, and that an aircraft CO2 standard is most likely to reduce emissions if it applies to all newly built aircraft from current production lines, not just to new designs.

Publication: Report

An assessment of new and emerging technologies that could be phased in between 2012 and 2017 to reduce carbon dioxide emissions from long haul tractor-trailers by up to 50%. The report concludes that most of these measures would produce net savings over the life of a vehicle due to reduced fuel costs.

Publication: Report

In many cities around the world, two- and three-wheel vehicles are the main mode of personal and commercial transportation. Motorcycles are cheaper to own than cars and often more convenient to navigate on congested roadways. Unfortunately, emissions from two- and three-wheelers have long been uncontrolled. The explosive growth in motorcycle usage in Asian cities and around the world has resulted in a significant deterioration of urban air quality.

Publication: Report

Demonstrates a linear-model approach to estimating fuel economy in trucks and buses.

Publication: Report

An independent review of approaches to evaluating heavy-duty vehicle fuel use.

Publication: Report

Provides background information on U.S. heavy-duty vehicle fleet characteristics and identifies issues relevant to the design and implementation of fuel economy and GHG regulations.

Publication: Report

Updates the ICCT 2004 Status Report on MMT, providing more detail on recent studies of the potential health impacts associated with its use.

Publication: Report