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Assistance Listing 66.039

Diesel Emission Reduction Act (DERA) National Grants

Environmental Protection Agency

Assistance Listing 66.039, “Diesel Emission Reduction Act (DERA) National Grants,” is a federal program administered by Environmental Protection Agency. It provides grant assistance. GrantsJunction currently tracks 1 open, 0 forecasted and 0 closed opportunities under this listing. The agency reported $599K in obligations for fiscal year 2025.

Program objective

The Diesel Emissions Reduction Act, 42 U.S.C. 16132 et seq., as amended, authorizes the 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. Funding Priorities: 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.

As published in the SAM.gov Assistance Listing.

Current opportunities under 66.039

Eligible applicants (program level)

  • U.S. Territory (or Possession) Government (including freely-associated states)
  • State
  • Other Local Government Consortium, Regional Organization (Intrastate), or Other Local Government Combination
  • Local
  • U.S. State Government (including the District of Columbia)
  • Other
  • Federally Recognized Indian/Native American/Alaska Native Tribal Government
  • Nonprofit Organization
  • Interstate Organization

Eligible applicants are: A regional, state, local or Tribal agency or port authority with jurisdiction over transportation or air quality; and a nonprofit organization or institution that represents or provides pollution reduction or educational services to persons or organizations that own or operate diesel fleets; or has, as its principal purpose, the promotion of transportation or air quality are eligible for assistance under this program. City, county, or municipal agencies, school districts, and metropolitan planning organizations (MPOs) that have jurisdiction over transportation or air quality are all eligible entities under this program to the extent that they fall within the definition above. For certain competitive funding opportunities under this assistance listing, the Agency may limit eligibility to compete to a number or subset of eligible applicants consistent with the Agency's Assistance Agreement Competition Policy. For certain competitive funding opportunities under this assistance listing, the Agency may limit eligibility to compete to a number or subset of eligible applicants consistent with the Agency's Assistance Agreement Competition Policy.

Intended beneficiaries: Local, Other Local Government Consortium, Regional Organization (Intrastate), or Other Local Government Combination, U.S. State Government (including the District of Columbia), U.S. Territory (or Possession) Government (including freely-associated states), Interstate Organization, Federally Recognized Indian/Native American/Alaska Native Tribal Government, Municipality or Township government (inclusive of cities, towns, boroughs (except in Alaska), and villages), Territorial and State.

Program-level eligibility from SAM.gov. Each funding notice sets its own requirements.

Reported obligations by fiscal year

Historical data · not a prediction
FY24$138M
FY25$599K
FY26$60M est.

Range and average of financial assistance (from the listing): Smaller grants typically range from $100,000 - $300,000 with an average award of $125,000. Larger grants typically range from $500,000 - $2 million with an average award of $650,000.

Source: SAM.gov Assistance Listing 66.039. Hatched bars are agency estimates. These totals do not indicate approval rates.

Frequently asked questions

What is ALN 66.039?

66.039 is the Assistance Listing Number for “Diesel Emission Reduction Act (DERA) National Grants.” Assistance Listing Numbers (formerly CFDA numbers) identify federal assistance programs; individual grant opportunities reference the listing they are funded under.

Who can apply under ALN 66.039?

The SAM.gov listing names these applicant types: U.S. Territory (or Possession) Government (including freely-associated states), State, Other Local Government Consortium, Regional Organization (Intrastate), or Other Local Government Combination, Local, U.S. State Government (including the District of Columbia), Other, Federally Recognized Indian/Native American/Alaska Native Tribal Government, Nonprofit Organization and Interstate Organization. Each funding notice under the program sets its own eligibility, so check the specific opportunity.

How much funding does 66.039 provide?

The agency reported $599,048 in obligations for FY2025 in the SAM.gov Assistance Listing. These are program-wide totals reported by the agency, not a prediction of future awards.