An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

MOVES and Related Models

December 2017 MOVES Model Review Work Group Meeting Materials

The agenda and focus of the MOVES Model Review Work Group meeting on December 6th, 2017 included updates to MOVES heavy-duty vehicle source masses, fixed mass factor, and diesel particulate matter emission rates, as well as updates to modeling emissions from Tier 4 nonroad diesel engines, and an overview of a draft tool to model ramps in project scale. Additionally, representatives from the Coordinating Research Council (CRC) provided an overview of current and upcoming MOVES-related projects.

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.