Surveys, Studies, Research, Investigations, Demonstrations, and Special Purpose Activities Relating to the Clean Air Act
Active
- Assistance listing
- 66.034
- Grant awards
- 4,184 $1,580,170,158 in federal obligations
Program facts
- Assistance types
-
- Project Grant
- Cooperative Agreement
- Formula Grant
- Treasury accounts
-
- 68-0103-0-1-304
- 68-0107-0-1-304
- 68-0108-0-1-304
- 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 funds surveys, studies, research investigations, demonstrations, and special-purpose activities relating to air pollution causes, effects, prevention, and control under Assistance Listing 66.034, with the most recent grant award disbursed on July 1, 2026.
The program funds ambient air quality monitoring networks, air toxics measurement and analysis, health effects research, indoor air quality initiatives, community-driven monitoring partnerships, and policy support for state and local air agencies. Awarded grants show heavy concentration in fine particulate matter (PM2.5) monitoring operations and maintenance across state environmental agencies, local air quality districts, and tribal governments. Representative recent awards include the Puerto Rico Department of Natural and Environmental Resources receiving $437,763 for PM2.5 network operation (July 2026); the Texas Commission on Environmental Quality receiving $945,342 for ambient PM2.5 and chemical composition monitoring (April 2026); and the National Association of Clean Air Agencies receiving $1.533 million for coordination and communication services to state and local air pollution control officials (October 2025). EPA also funds specialized activities such as air toxics trend monitoring through the National Air Toxics Trend Site (NATTS) program and inflation-reduction-act-funded community air quality sensor deployment in disadvantaged communities.
The program is predominantly Project Grants (98 percent of 4,104 awards), with small shares of Cooperative Agreements (1 percent) and Formula Grants (1 percent). The Environmental Protection Agency dominates funding, obligating $1 billion across 3,204 awards; EPA Region 9, Region 4, and Region 5 together account for substantially smaller portions at $87.2 million, $78.8 million, and $71 million respectively. Total federal dollars obligated across the portfolio reached $1.58 billion, with non-federal match contributions bringing combined obligations to $1.65 billion. Recent award volume has declined significantly—2025 saw only 83 awards compared to 285 in 2023—though activity continues: 17 awards were obligated in the first seven months of 2026.
Recent grant opportunities are not currently open. The most recent competitive solicitation on file closed March 19, 2024 (EPA-R-OAR-APS-24-02, Grant Funding to Address Indoor Air Pollution at Schools, targeting tribes, states, and nonprofit organizations). Earlier closed opportunities include community-scale air monitoring competitions (closed March 2022) and tribal air association operations support (closed August 2022). The source contains no presently active NOFO.
Objective and description
- Objective
The objectives of this assistance listing are to fund surveys, research, investigations, demonstrations, and special purpose activities related to the causes, effects (including health and welfare effects), extent, prevention, and control of air poll
- Description
To support Surveys, Studies, Research, Investigations, Demonstrations and Special Purpose assistance relating to the causes, effects (including health and welfare effects), extent, prevention, and control of air pollution to include such topics as air quality, acid deposition, global programs, energy efficiency, indoor environments, radiation, mobile source technology and community-driven approaches to transportation and emissions reduction.
Eligibility
- Applicant eligibility
Assistance under this program is generally available to States, local governments, territories, Indian Tribes, and possessions of the U.S., including the District of Columbia, international organizations, public and private universities and colleges, hospitals, laboratories, other public or private nonprofit institutions, which submit applications proposing projects with significant technical merit and relevance to EPA's Office of Air and Radiation's mission. Eligibility for projects awarded or competed exclusively with State and Tribal Assistance Grant (STAG) funds is limited to air pollution control agencies, as defined in section 302(b) of the Clean Air Act that are also eligible to receive grants under section 105 of the Clean Air Act, and/or federally recognized tribes and inter-tribal consortia, consisting of federally recognized tribe members. 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
State and local governments, U.S. territories and possessions, Indian Tribes, universities and colleges, hospitals, laboratories, and other public and private nonprofit institutions.
- Uses of assistance
Grants and cooperative agreements are available to support recipients' allowable direct costs incident to approved Surveys, Studies, Research, Investigations, Demonstrations and Special Purpose plus allowable indirect costs, in accordance with established EPA policies and regulations. 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
Use restrictions will be described in the NOFO.
- Length and time phasing of assistance
EPA normally funds grants and cooperative 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. Grants are generally fully funded or on an incremental funding basis. Successful applicants will be notified either via U.S. mail or electronically. Such notification is contingent upon information contained in the resulting solicitation.
How to apply
- Preapplication coordination
This program is eligible for coverage under E.O. 12372, "Intergovernmental Review of Federal Programs" only when proposed Federal financial assistance involves land use planning or construction associated with demonstration projects. EPA financial assistance programs and activities subject to intergovernmental review that are subject to review under State single point of contact procedures are identified at https://www.epa.gov/grants/epa-financial-assistance-programs-subject-executive-order-12372-and-section-204. Applicants for programs or activities subject to Intergovernmental Review that are not subject to State single point of contact review must provide directly affected State, areawide, regional, and local entities at least 60 days to review their application following notification by EPA that the application has been selected for funding as provided by 40 CFR 29.8(a) and (c). Regarding pre-application with respect to competitive funding opportunities under this assistance listing, EPA will generally specify the nature of the pre-application assistance, if any, that will be available to applicants in the competitive announcement. For additional information, contact the individual(s) listed as "Agency Contacts" in the competitive announcement.
- Criteria for selecting proposals
EPA selects proposed Surveys, Studies, Research, and Investigations projects for funding based on factors such as relevancy to EPA's mission, technical merit, and the likelihood of success. The evaluation and selection criteria for competitive awards under this assistance listing will be described in the NOFO.
- Award procedure
For competitive awards, EPA will review and evaluate applications in accordance with the terms, conditions, and criteria stated in the competitive announcement. Competitions will be conducted in accordance with EPA policies/regulations for competing assistance agreements. For non-competitive awards made under this assistance listing, 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.
- Deadlines
For competitive awards, deadlines will be specified in the competitive announcement.
- Time to approval or disapproval
Approximately 180 days.
- Renewals
Generally, EPA incrementally funds grants and cooperative agreements for Surveys, Studies, Research, and Investigations. Approval of subsequent funding increments is dependent on satisfactory project progress, continued relevance of the project to EPA's priorities, availability of funds, and Agency policy on the competitive grant process.
- Appeals
Assistance agreement competition-related disputes will be resolved in accordance with the dispute resolution procedures published in 70 FR (Federal Register) 3629, 3630 (January 26, 2005). Copies of these procedures may also be found at: https://www.epa.gov/grants/grant-competition-dispute-resolution-procedures. Disputes relating to matters other than the competitive selection of recipients will be resolved under 2 CFR 1500 Subpart E, as applicable.
Grant opportunities
Show all 19
Grant awards
Latest 10 of 4,184 listed here. See the rest on GovTribe.
Top recipients by federal obligations
| Rank | Recipient | Federal obligations | Share |
|---|---|---|---|
| 1 | Texas Commission On Environmental Quality | $38,965,353 | 2% |
| 2 | Department Of Environmental Conservation New York | $29,855,604 | 2% |
| 3 | Northeast States For Coordinated Air Use Management Inc. | $26,917,635 | 2% |
| 4 | South Coast Air Quality Management District | $26,698,493 | 2% |
| 5 | National Association Of Clean Air Agencies | $26,695,531 | 2% |
| 6 | Michigan Department Of Environment, Great Lakes, And Energy | $23,077,792 | 1% |
| 7 | The State Of Ohio Office Of Budget And Management | $22,342,848 | 1% |
| 8 | Lake Michigan Air Directors Consortium | $21,956,462 | 1% |
| 9 | Environmental Management, Indiana Department OF. | $20,935,882 | 1% |
| 10 | Oregon Department Of Environmental Quality | $20,863,047 | 1% |
10 of 711 recipients listed here. See the rest on GovTribe.
Federal obligations by fiscal year
| Fiscal year | Federal obligations |
|---|---|
| FY2026 | $27,302,599 |
| FY2025 | $93,764,753 |
| FY2024 | $154,683,789 |
| FY2023 | $115,642,467 |
| FY2022 | $70,812,568 |
| FY2021 | $48,475,581 |
| FY2020 | $41,208,715 |
| FY2019 | $42,332,179 |
| FY2018 | $46,130,812 |
| FY2017 | $38,451,493 |
| FY2016 | $45,332,453 |
| FY2015 | $48,284,254 |
| FY2014 | $48,001,979 |
| FY2013 | $45,325,373 |
| FY2012 | $61,016,928 |
| FY2011 | $54,271,989 |
| FY2010 | $58,225,602 |
| FY2009 | $55,067,825 |
| FY2008 | $69,663,011 |
| FY2007 | $70,964,052 |
| FY2006 | $76,466,999 |
| FY2005 | $84,639,981 |
| FY2004 | $92,775,357 |
| FY2003 | $68,097,454 |
| FY2002 | $22,229,745 |
Show all 25
Quick answers
What is Assistance Listing 66.034?
Assistance Listing 66.034 is Surveys, Studies, Research, Investigations, Demonstrations, and Special Purpose Activities Relating to the Clean Air Act, a federal grant program run by Environmental Protection Agency.
What is the CFDA number for Surveys, Studies, Research, Investigations, Demonstrations, and Special Purpose Activities Relating to the Clean Air Act?
Its CFDA number is 66.034: Assistance Listing numbers were called CFDA numbers before 2018.
How much funding has Assistance Listing 66.034 awarded?
4,184 grant awards under 66.034 have obligated $1,580,170,158 in federal funds to 711 recipients.
Who receives the most funding from 66.034?
The recipients obligated the most under Surveys, Studies, Research, Investigations, Demonstrations, and Special Purpose Activities Relating to the Clean Air Act are Texas Commission On Environmental Quality ($38,965,353), Department Of Environmental Conservation New York ($29,855,604) and Northeast States For Coordinated Air Use Management Inc. ($26,917,635).
How much did 66.034 obligate in fiscal year 2025?
Grants under 66.034 obligated $93,764,753 in federal funds in fiscal year 2025.
Are there open grant opportunities under 66.034?
No opportunity listed under 66.034 is open now. The latest, Grant Funding to Address Indoor Air Pollution at Schools, was posted on January 11, 2024.
On GovTribe
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