FEAT has been used most extensively to collect emissions data from light-duty gasoline and diesel powered vehicles throughout the United States and the world. Most data sets provided through this site will also contain vehicle information obtained through the video matching of license plates and local department of motor vehicle records. Cities or data sets which do not have vehicle information are italicized. Publication links will take you to either an electronic version or its reference in our publication listing. Let us know if you would like a copy of any of our paper references and we'll mail you one.

United States Data

World Data

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Light-Duty Vehicles was last updated Tuesday, August 17, 2021