Direct Implementation Tribal Cooperative Agreements
Active
- Assistance listing
- 66.473
- Grant awards
- 210 $29,503,224 in federal obligations
Program facts
- Also known as
- DITCA
- Assistance types
-
- Cooperative Agreement
- Project Grant
- Treasury accounts
-
- 68-0108-0-1-304
- 68-0103-0-1-304
- 68-8153-0-1-999
- More information
Program details come from SAM.gov Assistance Listings. Updated . Grant award figures come from USAspending.gov.
About this program
The Environmental Protection Agency (EPA) awards cooperative agreements under CFDA 66.473 to federally recognized Indian tribes and eligible intertribal consortia to directly implement federal environmental laws on tribal lands, with the most recent award dated October 1, 2025.
The program funds tribes and intertribal consortia to administer environmental compliance and management activities in Indian country. Recent awards show a strong focus on underground storage tank (UST) program administration—including compliance inspections, facility walkthroughs, and inspector credential maintenance—coupled with drinking water system technical assistance and training. Representative recent awards include support to the Choctaw Nation of Oklahoma for UST compliance assistance and facility inspections ($100 thousand, awarded January 2025); the Inter-Tribal Council of Michigan for UST program management across nine Michigan reservations ($166 thousand, awarded October 2024); and the Yakama Nation for air quality management including monitoring, smoke management plan implementation, and Federal Air Rules implementation ($690 thousand, awarded October 2024). The program also funds activities under the Safe Drinking Water Act, underground injection control permitting and enforcement, pollution prevention technical assistance, and spill prevention compliance programs.
The portfolio comprises 210 awards across a 24-year history since July 2001, with combined federal obligations of $29.5 million. The EPA awarded awards at a variable pace: 4 in 2021, 9 in 2022, 1 in 2023, 11 in 2024, and 3 in 2025 to date. Cooperative agreements dominate the mix at 136 awards (65 percent); Project Grants account for the remaining 35 percent. The Environmental Protection Agency (national level) has issued 169 awards valued at $21.1 million; EPA Region 10 has awarded 6 grants totaling $3 million; EPA Region 5 has awarded 22 grants valued at $2.8 million; EPA Region 6 has awarded 9 grants valued at $2 million; and EPA Region 2 has awarded 4 grants valued at $563 thousand. Award values range from under $15 thousand to approximately $700 thousand, with typical awards in the $80 thousand to $200 thousand range. The program works with tribes to develop work plans consistent with EPA guidance; cooperative agreements are typically awarded within 60 to 120 days from application receipt.
Objective and description
- Objective
Direct Implementation Tribal Cooperative Agreements (DITCAs) enable EPA to award cooperative agreements to federally recognized Indian tribes and eligible intertribal consortia to help carry out the Agency's function to directly implement Federal env
- Description
EPA works to protect human health and the environment of federally recognized tribes by supporting implementation of federal environmental laws, with a special emphasis on helping tribes administer their own environmental programs. These efforts are consistent with the federal trust responsibility, the government-to-government relationship, and EPA's 1984 Indian Policy.
Eligibility
- Applicant eligibility
DITCAs may be awarded to: (1) Federally Recognized Indian Tribal Government, and (2) intertribal consortia consistent with applicable provisions. In order for an intertribal consortium to be eligible to receive cooperative agreements under this authority, an intertribal consortium should be consistent with the provisions in 40 C.F.R. Part 35 Subpart B (Tribal Grants). See "EPA's Direct Implementation of Federal Environmental Programs in Indian Country", which can be found at: https://www.epa.gov/tribal/epas-direct-implementation-federal-environmental-programs-indian-country.
- Beneficiary eligibility
Federally Recognized Indian Tribal Government and intertribal consortia consistent with applicable provisions.
- Uses of assistance
DITCAs assist Tribes in helping EPA directly implement Federal environmental programs required or authorized by law in the absence of an acceptable Tribal program and may only be awarded to Tribes to assist the Administrator in directly implementing Federal environmental programs for Indian Tribes required or authorized by law. For example, activities under the following programs may be eligible for DITCA funding: 1) the National Pollutant Discharge Elimination System permit program under the Clean Water Act. 2) Implementation plan development and the Title V permit program under the Clean Air Act. 3) The Public Water System program and the Underground Injection Control program under the Safe Drinking Water Act. 4) The Underground Storage Tank program and the Subtitle C permit program under the Resource Conservation and Recovery Act. 5) The Certification and Training program for pesticide applicators under the Federal Insecticide, Fungicide, and Rodenticide Act. 6) The Lead-Based Paint program under the Toxic Substances Control Act. Assistance agreement awards under this program may involve or relate to geospatial information. Further information regarding geospatial information may be obtained by viewing the following website: Geospatial Resources at EPA (https://www.epa.gov/geospatial).
- Use restrictions
Limitations on DITCA awards include: (1) The statutory authority for DITCA is found in appropriations acts. In the event the appropriation authority is extended by continuing resolution(s), the DITCA authority will also be extended. (2) The project period of the DITCA may extend beyond the period of the appropriations act under which it was created, but all funds must be awarded prior to the expiration of the appropriations act authorizing the DITCA. (3) DITCA-funded personnel may not perform inherently Federal functions. (4) EPA personnel can provide assistance to DITCA representatives based on the written DITCA work plan, which may include daily direction. EPA cannot treat DITCA representatives as EPA employees by participating in hiring, disciplining, or firing decisions. (5) DITCA-funded personnel cannot operate vehicles that are either owned or leased by the Federal government. This program makes Federal awards on a discretionary basis. A discretionary award means an award in which the Federal awarding agency, in keeping with specific statutory authority that enables the agency to exercise judgement ("discretion"), selects the recipient and/or the amount of Federal funding awarded through a competitive process or based on merit of proposals. A discretionary award may be selected on a non-competitive basis, as appropriate. For further information, please contact the Headquarters or regional office.
- Length and time phasing of assistance
EPA normally awards cooperative agreements for periods of 12 to 36 months. The term of the grant shall be determined at the time of award.
How to apply
- Preapplication coordination
For non-competitive awards, EPA will work with Tribes and Intertribal Consortia to develop work plans consistent with program guidance and any regulations that govern the implementation of the relevant Federal environmental program. For additional information, contact the individual(s) listed as "Information Contacts"
- Application procedure
Issuing office will provide location of application procedure details as appropriate.
- Criteria for selecting proposals
Cooperative agreements may be awarded to Tribes which submit applications consistent with EPA regulations and guidance. EPA will work with Tribes and Intertribal consortia to develop work plans consistent with program guidance and any regulations that govern the implementation of the relevant Federal environmental program.
- Award procedure
EPA will review each application to determine the adequacy of the application in relation to EPA's grant regulations (2 CFR 200 and 1500) and other applicable program regulations and guidance. If the application is approved, EPA will award a cooperative agreement up to the reasonable and necessary cost of the approved work plan.
- Time to approval or disapproval
Cooperative agreements are usually awarded within 60 to 120 days from the date of application receipt.
- Appeals
Disputes will be resolved under 2 CFR 1500 Subpart E, as applicable.
Grant awards
Latest 10 of 210 listed here. See the rest on GovTribe.
Top recipients by federal obligations
| Rank | Recipient | Federal obligations | Share |
|---|---|---|---|
| 1 | NEZ Perce Tribe | $7,032,080 | 24% |
| 2 | Confederated Tribes And Bands Of The Yakama Nation | $5,090,450 | 17% |
| 3 | Inter-Tribal Council Of Michigan Inc. | $3,202,275 | 11% |
| 4 | Osage Nation | $1,712,216 | 6% |
| 5 | Oneida Nation | $1,230,613 | 4% |
| 6 | Seneca Nation Of Indians | $953,269 | 3% |
| 7 | Minnesota Chippewa Tribe - White Earth Band | $782,847 | 3% |
| 8 | Leech Lake Band Of Ojibwe | $705,750 | 2% |
| 9 | Red Lake Band Of Chippewa Indians | $696,000 | 2% |
| 10 | Mille Lacs Band Of Ojibwe | $638,500 | 2% |
10 of 51 recipients listed here. See the rest on GovTribe.
Federal obligations by fiscal year
| Fiscal year | Federal obligations |
|---|---|
| FY2025 | $1,835,063 |
| FY2024 | $1,476,128 |
| FY2023 | $886,094 |
| FY2022 | $1,472,500 |
| FY2021 | $1,608,419 |
| FY2020 | $1,001,066 |
| FY2019 | $1,006,847 |
| FY2018 | $1,202,827 |
| FY2017 | $1,078,423 |
| FY2016 | $1,287,604 |
| FY2015 | $1,326,739 |
| FY2014 | $1,182,248 |
| FY2013 | $559,003 |
| FY2012 | $2,500,788 |
| FY2011 | $2,009,085 |
| FY2010 | $900,189 |
| FY2009 | $1,119,624 |
| FY2008 | $2,288,635 |
| FY2007 | $1,289,570 |
| FY2006 | $1,000,628 |
| FY2005 | $466,285 |
| FY2004 | $807,103 |
| FY2003 | $136,966 |
| FY2002 | $626,367 |
| FY2001 | $353,723 |
Show all 25
Quick answers
What is Assistance Listing 66.473?
Assistance Listing 66.473 is Direct Implementation Tribal Cooperative Agreements, a federal grant program run by Environmental Protection Agency.
What is the CFDA number for Direct Implementation Tribal Cooperative Agreements?
Its CFDA number is 66.473: Assistance Listing numbers were called CFDA numbers before 2018.
How much funding has Assistance Listing 66.473 awarded?
210 grant awards under 66.473 have obligated $29,503,224 in federal funds to 51 recipients.
Who receives the most funding from 66.473?
The recipients obligated the most under Direct Implementation Tribal Cooperative Agreements are NEZ Perce Tribe ($7,032,080), Confederated Tribes And Bands Of The Yakama Nation ($5,090,450) and Inter-Tribal Council Of Michigan Inc. ($3,202,275).
How much did 66.473 obligate in fiscal year 2025?
Grants under 66.473 obligated $1,835,063 in federal funds in fiscal year 2025.
On GovTribe
See this program's full record
- Every grant award and opportunity under it
- Funding by recipient, agency and assistance type
- Alerts for new opportunities
- Ask GovTribe AI about this program