Assistance program
Diesel Emission Reduction Act (DERA) National Grants
$381.1 Million committed in FY2018–FY2026
- Agency
- Environmental Protection Agency, Environmental Protection Agency
- Assistance
- Project Grants
- CFDA number
- 66.039
- What it does
- The Diesel Emissions Reduction Act, 42 U.S.C. 16132 et seq., as amended, authorizes EPA to award grants, rebates and loans to eligible entities to fund diesel emissions reductions. Emission reductions are achieved through the implementation of a certified engine configuration, verified retrofit technology, or emerging technology for buses (including school buses), medium heavy-duty or heavy heavy-duty diesel trucks, marine engines, locomotives, or nonroad engines used in construction, handling of cargo (including at port or airport), agriculture, mining, or energy production. In addition, eligible entities may also use funds to reduce long-duration idling using verified idle-reduction technology with certain vehicles or equipment described above. The objective of this program is to achieve significant reductions in diesel emissions and exposure, particularly from fleets operating in areas designated by the Administrator as poor air quality areas. Priority is given to projects which promote environmental justice (EJ) by demonstrating benefits to disadvantaged communities. EJ is the fair treatment and meaningful involvement of all people regardless of race, color, national origin, or income with respect to the development, implementation and enforcement of environmental laws, regulations and policies. Funding Priorities - Fiscal Year 2023: The National DERA program works to reduce the pollution emitted from diesel engines across the country through the implementation of various control strategies and involvement of national, state, local and private partners. Priority will be given to projects which achieve significant reductions in diesel emissions and exposure, particularly from fleets operating in poor air quality areas and/or service goods movement facilities. Further, priority for funding may be given to projects which benefit and engage disadvantaged communities, and those which can demonstrate project sustainability, climate change adaptation and workforce development.
- Who benefits
- Owners of eligible diesel-powered vehicles and equipment. Both public owned fleets and privately owned fleets may benefit.
- Who applies
Committed by fiscal year
* FY2026 is year-to-date — the fiscal year is still in progress, so its total is still filling in. The striped band and dashed line mark that provisional stretch.
Top recipients
By dollars committed.
How to read these numbers
- Committed through this program
Money committed under this assistance listing (its CFDA program), counted in the year each action happened.
- How it's paid
Most programs pay out one way — a grant, or a direct payment to individuals; the flow bar only appears when a program genuinely mixes types.
- Some recipients aren't itemized
For entitlement programs like Social Security and Medicare, the government reports one aggregate instead of naming tens of millions of people, so the recipient roster isn't part of the public record.
- Awards, counted once
An award count is the number of distinct awards with at least one action that year — each counted once, however many times it was amended.
- The colored bars
Every bar on this page splits by how the money moves:
Direct payments