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 This website is no longer updated and links to external websites and some internal pages may not work.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

Can We Model Jurisdictions With Different Fuel Requirements in One Custom Domain?

The custom domain option is designed to be used for counties for which the same model inputs can be used to describe the entire area. It is especially important that inputs for local fuels and I/M programs are consistent. For areas with different fuels or different I/M programs you would need to perform multiple runs.