Oklahoma Clean Diesel (DERA) Program
Administered by Oklahoma Department of Environmental Quality
This program does not apply to homeowners; it is designed for schools and commercial/industrial entities to replace or retrofit diesel school buses.
Contractors can support eligible schools and commercial entities in retrofitting or replacing diesel school buses under this Oklahoma DEQ-administered program, which has successfully processed over 577 bus replacements across 87 school districts as of May 2025.
The Oklahoma Clean Diesel Program, administered by the Department of Environmental Quality, provides grants to schools, commercial, and industrial entities to replace or retrofit aging diesel vehicles, with demonstrated impact of 577+ school buses upgraded across 87 districts; the most recent solicitation closed in November 2024.
Program details
- Program ID
- 22220
- Last updated
- 5/21/2025
Eligibility
- Sectors
- commercial industrial schools
- Technologies
- electric school buses
Program summary
Note: The most recent solicitation closed in November 2024.
The Clean Diesel Program, administered by Oklahoma Department of Environmental Quality, provides incentives to many entities in Oklahoma to replace old diesel vehicles. As of May 2025, over 87 school districts have been able to retrofit and/or replace over 577 diesel school buses. For more information, visit the program website.
Contact & resources
- Contact email
- cleandiesel@deq.ok.gov
- Additional resources
Please verify current program details with the administering agency before making any financial decisions.
