International Council on Clean Transportation

Attribute-based efficiency standards

This paper summarizes differences between size-based and mass-based standards and discusses their relative advantages and disadvantages. The authors argue for a reconsideration of the mass-based regulatory framework where it is in use and against its extension into as-yet-unregulated light-duty vehicle

CNG Bus Emissions Roadmap

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

Feebate best practices

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.

Lightweight future

A new study by Lotus Engineering finds that, using existing or soon-to-be-available mainstream engineering techniques, automakers can reduce passenger-vehicle mass by one third in exchange for a 3% increase in component costs.