Vehicle Emissions Research

This page last reviewed June 10, 2015


The California Air Resources Board (ARB) has been leading several multi-agency research programs to characterize vehicular emissions. These prgrams have three broad goals: (1) to understand the real-world effect of current regulations, (2) to inform the development of new regulations, and (3) to inform the Board on emerging issues that fall broadly within our mission to protect human health.

The completed and ongoing emissions research are listed as follows. This is not a comprehensive list of all vehicular emission research at ARB, but rather subset of the projects that are more exploratory in nature.

Vehicle Emissions Research Programs