Programs › 66.001
Assistance listing · 66.001
Air Pollution Control Program Support
Federal financial assistance obligated under listing 66.001, the organisations that receive it and where it goes.
USAspending caveat. Figures are obligations reported by federal agencies to USAspending.gov, not payments. In USAspending's words: "An outlay occurs when federal money is actually paid out, not just promised to be paid ('obligated')." "Every agency has a Senior Accountable Official who must officially certify that the quarterly financial data submitted by their agency is accurate and complete." "If there are any discrepancies in procurement data, FPDS is the authoritative source." Contract data for the Department of Defense and the U.S. Army Corps of Engineers is published with a 90-day delay. Data loaded 30 Sep 2026.
Federal agencies obligated $85M in awards under assistance listing 66.001, Air Pollution Control Program Support, in FY2025, and $376M over the five fiscal years since FY2022; the program ranks 499 of 1056 on this site.
Obligations were up 25% on FY2024 ($68M), with $69M so far in FY2026.
The largest recipient organisations by the value of $1.0M-plus awards since FY2022 were Department of Environmental Conservation New York ($34M), South Coast Air Quality Management District ($20M) and Pennsylvania Department of Environmental Protection ($16M).
By place of performance, the most money went to CA, NY and PA.
Obligations by fiscal year
Compared with the largest program FY2025
| Measure | This program | Grants to States for Medicaid | All assistance |
|---|---|---|---|
| Obligations, FY2025 | $85M | $666B | $4.5T |
| Five-year total | $376M | $3.2T | $21T |
| Share of all assistance obligations, five years | 0% | 15.2% | 100% |
Largest recipients $1.0M+ award value since FY2022
| # | Organisation | Awards | Award value |
|---|---|---|---|
| 1 | Department of Environmental Conservation New York | 4 | $34M |
| 2 | South Coast Air Quality Management District | 4 | $20M |
| 3 | Pennsylvania Department of Environmental Protection | 1 | $16M |
| 4 | Air Resources Board | 1 | $14M |
| 5 | The State of Ohio Office of Budget and Management | 1 | $10M |
| 6 | Michigan Department of Environment, Great Lakes, and Energy | 1 | $9.6M |
| 7 | San Joaquin Valley Unified Air Pollution Control District | 4 | $9.3M |
| 8 | Bay Area Air Quality Management District | 3 | $7.2M |
| 9 | Kansas Department of Health & Environment | 3 | $6.5M |
| 10 | Philadelphia City of | 1 | $5.9M |
| 11 | New Mexico Environment Department | 3 | $5.5M |
| 12 | Arkansas Division of Environmental Quality | 3 | $5.5M |
| 13 | State of Idaho Department of Environmental Quality | 2 | $4.7M |
| 14 | Maricopa, County of | 4 | $4.6M |
| 15 | North Carolina Department of Environmental Quality | 1 | $4.6M |
Awarding agencies $1.0M+ awards
Where the money goes
Largest awards since FY2022
Other programs numbered 66.xxx
- 66.468 Drinking Water State Revolving Fund $29B
- 66.458 Clean Water State Revolving Fund $17B
- 66.957 Greenhouse Gas Reduction Fund: National Clean Investment Fund $14B
- 66.959 Greenhouse Gas Reduction Fund: Solar for All $7.0B
- 66.960 Greenhouse Gas Reduction Fund: Clean Communities Investment Accelerator $6.0B
- 66.046 Climate Pollution Reduction Grants $4.9B
- 66.442 Water Infrastructure Improvements for the Nation Small and Underserved Communities Emerging Contaminants Grant Program $3.4B
- 66.051 Clean Ports Program $2.9B
- 66.045 Clean School Bus Program $2.8B
- 66.202 Congressionally Mandated Projects $2.7B
- 66.605 Performance Partnership Grants $2.4B
- 66.616 Environmental and Climate Justice Community Change Grants Program $1.5B
- 66.818 Brownfields Multipurpose, Assessment, Revolving Loan Fund, and Cleanup Cooperative Agreements $1.1B
- 66.600 Environmental Protection Consolidated Grants for the Insular Areas - Program Support $773M
- 66.615 Environmental Justice Thriving Communities Grantmaking Program (EJ TCGM) $660M
- 66.049 Clean Heavy-Duty Vehicles Program $630M
- 66.460 Nonpoint Source Implementation Grants $561M
- 66.802 Superfund State, Political Subdivision, and Indian Tribe Site-Specific Cooperative Agreements $497M
- 66.034 Surveys, Studies, Research, Investigations, Demonstrations, and Special Purpose Activities Relating to the Clean Air Act $486M
- 66.469 Geographic Programs - Great Lakes Restoration Initiative $451M
- 66.817 State and Tribal Response Program Grants $422M
- 66.801 Hazardous Waste Management State Program Support $328M
- 66.419 Water Pollution Control State, Interstate, and Tribal Program Support $326M
- 66.466 Geographic Programs - Chesapeake Bay Program General, Technical Assistance, and Small Watershed Grants $317M
Questions and answers
How much is obligated under assistance listing 66.001?
$85M in FY2025 and $376M over the five fiscal years since FY2022, counting every award type recorded under the listing (grants, direct payments, loan subsidy cost, insurance and other assistance). Obligations are commitments, not payments.
Who receives the most under Air Pollution Control Program Support?
Department of Environmental Conservation New York ($34M), South Coast Air Quality Management District ($20M), Pennsylvania Department of Environmental Protection ($16M), Air Resources Board ($14M), The State of Ohio Office of Budget and Management ($10M). Individuals are never listed; where a program pays individuals, USAspending records aggregated rows that appear here as "not shown".
What is an assistance listing (CFDA) number?
A five-digit number that identifies a federal financial assistance program on SAM.gov (formerly the Catalog of Federal Domestic Assistance). Every grant, loan, direct payment or other assistance award on USAspending carries one; contracts do not.
Provenance
Source: USAspending.gov API v2, spending by category (assistance listing) by fiscal year, recipient cross-tabulation for FY2022–FY2025 and award search, loaded 30 Sep 2026. State figures come from each state's top-100 listing table, so small amounts in a state may be missing. See methodology.