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Clean Diesel Grant Programs

The DNR administers the Clean Diesel Grant Programs to help reduce diesel emissions from both public and private vehicle fleets across the state.

These grant programs have made significant achievements across our state. For details, check out the Clean Diesel Grant Summary Report - March 2021.

The DNR does not administer NOx reduction programs related to the Volkswagen Environmental Mitigation Trust. The Wisconsin Department of Administration is the lead agency for this activity. For details, visit VW Mitigation Program [exit DNR].

We welcome your feedback. Please email your comments or suggestions about the Clean Diesel Grant Programs to Thank you!

2023 EPA Clean School Bus Program Grant

On August 28, 2023, the EPA announced the next round of funding for the Clean School Bus Program funded through the Bipartisan Infrastructure Law. The EPA anticipates awarding approximately $500 million in rebates to fund the replacement of existing school buses with clean and zero-emission (ZE) school buses. All application packages should be submitted electronically to EPA no later than January 31, 2024.


2020, 2021 & 2022 DERA Wisconsin Clean Diesel Grant Program

Below are forms required of recipients of the 2020, 2021 and 2022 DERA Wisconsin Clean Diesel Grant.

Notice: Fillable PDFs only open in Internet Explorer. If you are using a different browser, right click on the document link, choose "Save target as" and save the file to a location on your computer. For more information, visit the PDF help page.

DERA Wisconsin Clean Diesel Grant Program Grantee Lists

If you would like a grantee list from 2008-2015, please contact