Oregon DEQ diesel emissions mitigation fund grant application open through 10/21/2026

The Oregon Department of Environmental Quality is providing approximately $8 million this year in grant funding for diesel equipment owners to replace older and more polluting diesel engines with new, cleaner technologies and exhaust control retrofits. The program is designed to help address health and environmental impacts from diesel emissions in Oregon.

Business, government and tribal diesel equipment owners across the state are invited to apply for funding for projects that reduce diesel emissions in Oregon. Visit the DEQ Diesel Emissions Mitigation Grants program web page to:

• Learn about eligible diesel projects
• Register on DEQ's grant web portal
• Apply for funding using the Diesel Emissions Reduction Grant User Guide

Owners of medium- and heavy-duty vehicles requiring retrofits under the new Diesel Retrofit Compliance Program may also apply for funding to support the installation of diesel particulate filters.

The 2026 application is the last opportunity for the Diesel Emissions Mitigation Grant from DEQ.

Submissions must be received by DEQ no later than 5 p.m. (PDT) on October 21, 2024.

Do you need technical assistance in applying for these grant funds?

• Reach out to DEQ's technical assistance staff by emailing [email protected].
• For COBID small firms with a bonding capacity under $30 million - utilize the City's free fleet assessment and grant services.