Training, Investigations, and Special Purpose Activities of Federally-Recognized Indian Tribes Consistent With the Clean Air Act (CAA), Tribal Sovereignty and the Protection and Management of Air Quality

Active

Assistance listing
66.038
Agency
Grant awards
765 $87,848,569 in federal obligations

Program facts

Also known as
Tribal CAA 103 Project Grants
Assistance types
  • Formula Grant
  • Project Grant
  • Cooperative Agreement
Treasury accounts
  • 68-0103-0-1-304
  • 68-0108-0-1-304
  • 68-0107-0-1-304
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's CFDA 66.038 program funds federally recognized Indian Tribes' efforts to characterize and protect air quality on tribal lands through surveys, studies, research, training, investigations, and special-purpose activities consistent with the Clean Air Act, with the most recent award disbursed on April 1, 2026.

The program has remained consistently active over more than two decades, with 765 total awards since October 2002. Recent award cadence has held steady between 27 and 40 awards annually from 2022 through 2025, though only 3 awards have been obligated year-to-date in 2026. The portfolio is dominated by Formula Grants (75 percent of awards, 573 total) with a meaningful share of Project Grants (25 percent, 189 awards) and minimal Cooperative Agreement activity. Combined federal dollars obligated total $87.8 million across the portfolio.

EPA headquarters has issued 519 awards totaling $57.4 million in federal funding—representing 68 percent of all awards and 65 percent of total federal dollars obligated. EPA Region 9 is the second-largest funder with 136 awards and $12.5 million obligated; Regions 5, 7, and 8 together account for the remaining top-five funders. Ten distinct federal agencies participate in the program overall.

Recent awards span low-cost air-quality monitoring deployment, indoor air quality assessment and remediation, emissions inventory development, and tribal capacity building. The White Earth Band of Chippewa Indians received $100 thousand (Project Grant, April 2026) to install air sensors and develop a smoke-preparedness response plan; the Sault Sainte Marie Tribe of Chippewa Indians received $150 thousand (Project Grant, April 2026) for indoor air quality assessments and operation of an atmospheric deposition monitoring station. The Tulalip Tribe received $498,838 (Project Grant, October 2025) to host the Tribal Healthy Homes Network, delivering training and technical assistance on indoor air quality across multiple tribes. Typical Project Grant awards range from $15 thousand to $150 thousand; Formula Grant awards range from roughly $35 thousand to $193,939 (Winnebago Tribe, October 2024).

One recent Cooperative Agreement opportunity (EPA-OAR-IO-25-01, due October 1, 2025, posted July 30, 2025) sought eligible entities to support National Tribal Air Association operations providing air quality policy analysis and regulatory coordination to federally recognized tribes and Alaska Native Villages. No other recent notices of funding availability appear in the source.

Objective and description

Objective

This program supports Federally-recognized Indian Tribes' efforts to understand, assess and characterize air quality. In addition, this program supports their ability to design methods and plans to protect and improve air quality on Tribal lands thro

Description

To support Federally-recognized Indian Tribes' efforts to understand, assess and characterize air quality; design methods and plans to protect and improve air quality on Tribal lands through surveys, studies, research, training, investigations, and special purpose activitie

Eligibility

Applicant eligibility

Assistance under this program is generally available to Federally-recognized Indian Tribes and Intertribal Consortia, which submit applications proposing projects with significant technical merit and relevance to EPA's Office of Air and Radiation's mission. Tribal CAA 103 Project Grants have been determined by the Agency as exempt from competition under EPA Order 5700.5A1. 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

Beneficiary eligibility

Federally-recognized Indian Tribes and Intertribal Consortia.

Uses of assistance

Grants and cooperative agreements are available to support recipient's allowable direct costs incident to approved Tribal air resources activities that will protect public health and the environment, plus allowable indirect costs, in accordance with established EPA policies and regulations. 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 funds assistance agreements on a 12-month basis. However, EPA can negotiate the project period with each applicant based on project requirements. EPA limits project periods to 5 years.

How to apply

Preapplication coordination

Preapplication coordination is required. Environmental impact information is not required for this program. This program is excluded from coverage under E.O. 12372. EPA will generally specify the nature of the pre-application assistance, if any, that will be available to applicants. 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

Applications and proposals are selected for funding based on factors such as relevancy to EPA's mission, technical merit as required by 2 CFR 200.205, and the likelihood of success. Tribal CAA 103 Project Grants have been determined exempt from competition under EPA Order 5700.5A1, "Policy for Competition of Assistance Agreements."

Award procedure

EPA will conduct an administrative evaluation to determine the adequacy of the application in relation to grant regulations and to technical and program evaluation to determine the merit and relevance of the project. The Agency will then advise the applicant if funding is being considered. A final work plan will then be negotiated with the applicant.

Time to approval or disapproval

Approximately 180 days.

Renewals

Extensions are subject to EPA approval.

Appeals

Disputes will be resolved under 2 CFR 1500 Subpart E, as applicable.

Grant opportunities

Opportunity Status Posted Applications due
National Tribal Air Association EPA-OAR-IO-25-01 Closed

Grant awards

Award Recipient Federal obligations Awarded
Provide assistance to the sault sainte marie tribe of chippewa indians in its efforts to implement air quality projects… 06E01472 Sault STE Marie Tribe Of Chippewa Indians $150,000
This agreement provides funding for the white earth band of chippewa indians to install air sensors throughout the… 01E03679 Minnesota Chippewa Tribe - White Earth Band $100,000
The burns paiute tribe is requesting clean air act (CAA) grant funding to support the tribe's environmental… 03J20401 Burns Paiute Tribe $15,000
Build the tribe's capacity to assess air quality conditions and to develop strategies to address air quality issues… 97T49301 Colorado River Indian Tribes $85,398
Build the tribe's capacity to assess air quality conditions and to develop strategies to address air quality issues… 97T48401 The Hoopa Valley Tribe $94,381
This agreement provides funding to the santa rosa rancheria to assist with building the tribe's capacity to assess… 97T47201 Santa Rosa Rancheria Tachi Yokut Tribe $69,823
Build the tribe's capacity to assess air quality conditions and to develop strategies to address air quality issues… 97T47001 Cabazon Band Of Cahuilla Indians $115,859
Build the tribe's capacity to assess air quality conditions and to develop strategies to address air quality issues… 97T46901 White Mountain Apache Tribe $86,205
Build the tribe's capacity to assess air quality conditions and to develop strategies to address air quality issues… 97T46801 Shoshone-Paiute Tribes $126,976
This agreement provides funding to the blue lake rancheria to assist with building the tribe's capacity to assess air… 97T46601 Blue Lake Rancheria $76,524

Latest 10 of 765 listed here. See the rest on GovTribe.

Top recipients by federal obligations

10 of 141 recipients listed here. See the rest on GovTribe.

Federal obligations by fiscal year

Fiscal year Federal obligations
FY2026 $1,018,581
FY2025 $3,405,784
FY2024 $4,624,969
FY2023 $4,511,895
FY2022 $3,154,831
FY2021 $4,154,346
FY2020 $4,860,000
FY2019 $4,593,810
FY2018 $5,158,576
FY2017 $6,406,464
FY2016 $6,368,956
FY2015 $5,840,106
FY2014 $5,833,973
FY2013 $4,766,328
FY2012 $4,861,585
FY2011 $4,852,287
FY2010 $4,796,070
FY2009 $5,197,380
FY2008 $3,392,040
FY2007 $102,489
Show all 20

Quick answers

What is Assistance Listing 66.038?

Assistance Listing 66.038 is Training, Investigations, and Special Purpose Activities of Federally-Recognized Indian Tribes Consistent With the Clean Air Act (CAA), Tribal Sovereignty and the Protection and Management of Air Quality, a federal grant program run by Environmental Protection Agency.

What is the CFDA number for Training, Investigations, and Special Purpose Activities of Federally-Recognized Indian Tribes Consistent With the Clean Air Act (CAA), Tribal Sovereignty and the Protection and Management of Air Quality?

Its CFDA number is 66.038: Assistance Listing numbers were called CFDA numbers before 2018.

How much funding has Assistance Listing 66.038 awarded?

765 grant awards under 66.038 have obligated $87,848,569 in federal funds to 141 recipients.

Who receives the most funding from 66.038?

The recipients obligated the most under Training, Investigations, and Special Purpose Activities of Federally-Recognized Indian Tribes Consistent With the Clean Air Act (CAA), Tribal Sovereignty and the Protection and Management of Air Quality are Southern Ute Indian Tribe ($3,299,669), Alaska Native Tribal Health Consortium ($3,105,267) and Cherokee Nation ($2,919,385).

How much did 66.038 obligate in fiscal year 2025?

Grants under 66.038 obligated $3,405,784 in federal funds in fiscal year 2025.

Are there open grant opportunities under 66.038?

No opportunity listed under 66.038 is open now. The latest, National Tribal Air Association, was posted on July 30, 2025.

On GovTribe

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