Technical Assistance for Treatment Works (Clean Water Act [CWA] Section 104(b)(8))
Active
- Assistance listing
- 66.446
- Grant awards
- 27 $102,495,269 in federal obligations
Program facts
- Assistance type
-
- Project Grant
- Treasury account
-
- 68-0103-0-1-304
- 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 (EPA) Office for Water is soliciting training and technical assistance to rural, small, and Tribal municipalities and wastewater systems under Clean Water Act Section 104(b)(8) (CFDA 66.446), with the most recent opportunity posted June 15, 2026 and due August 14, 2026.
The program funds in-person and virtual training, technical assistance, and capacity-building support for rural, small, and Tribal communities to plan and finance wastewater infrastructure, achieve Clean Water Act compliance, and improve water quality. Funded activities include on-site technical assistance to publicly owned treatment works and decentralized wastewater systems; training for operators, managers, and elected officials; development of educational materials and webinars; support for Clean Water State Revolving Fund (CWSRF) funding applications; asset management planning; financial sustainability guidance; and peer-to-peer learning facilitation. The program explicitly targets communities and systems that have been historically underserved, including those relying on lagoon systems, decentralized septic systems, and tribal-specific infrastructure challenges.
The portfolio is dominated by the EPA Office for Water, which has funded 23 of 27 recent awards totaling $99 million of the $102.5 million in combined federal obligations since March 2022. The remaining four awards are distributed across EPA regional offices (Regions 2, 4, 6, and 7). All 27 awards are Project Grants. Recent award magnitudes range from $580 thousand to $17.3 million, with the largest and most recent award ($10.74 million, January 2026) supporting a national comprehensive technical assistance program with multiple subawardees.
Representative recent awards include $17.3 million to Rural Community Assistance Partnership for nationwide training and technical assistance across four priority areas (October 2025); $14.74 million to National Rural Water Association for on-site technical assistance and training workshops to 600-plus communities (September 2025); and $4 million to Pacific Northwest Pollution Prevention Resource Center for fats, oils, and grease and emerging contaminants abatement training at 36 rural and tribal wastewater systems (October 2023).
The current solicitation (EPA-OW-OWM-26-01, due August 14, 2026) seeks Cooperative Agreement applications addressing one of four priority areas: planning and financing for rural, small, and Tribal municipalities; water quality and compliance assistance; Tribe-specific assistance; and decentralized systems support. A prior opportunity closed November 25, 2024. Award frequency has been volatile—18 awards in 2023, then 5 in 2025 and 1 so far in 2026—suggesting funding activity concentrated in discrete competition cycles. Eligible applicants are nonprofit organizations, institutions of higher education, and state and local governments; Hospitals are not eligible.
Objective and description
- Objective
The objective is to provide technical assistance and training to rural, small, and tribal municipalities to: (1) plan, develop, and obtain financing for Clean Water State Revolving Fund (CWSRF) eligible projects; (2) protect water quality and achieve
- Description
Clean Water Act section 104(b)(8) statutory authority supports: (1) technical assistance to rural, small, and tribal municipalities for planning, developing, and obtaining financing for CWSRF-eligible projects and activities; (2) technical assistance and training for rural, small, and tribal publicly owned treatment works and decentralized wastewater treatment systems to protect water quality and achieve and maintain compliance with Clean Water Act requirements; and (3) providing information on planning, design, construction, and operation of publicly owned treatment works and decentralized wastewater treatment systems to rural, small, and tribal municipalities that meet the state's affordability criteria. This program supports rural, small and Tribal communities specifically with their wastewater infrastructure needs and supports communities on decentralized systems which often get overlooked.
Eligibility
- Applicant eligibility
Assistance under this program is generally available to public or private nonprofit organizations, subject to CWA 104(w), and the regulations at 2 CFR 200. Nonprofit organization, as defined by 2 CFR Part 200, means any corporation, trust, association, cooperative or other organization that: (1) is operated primarily for scientific, educational, service, charitable or similar purposes in the public interest; (2) is not organized primarily for profit; and (3) uses its net proceeds to maintain, improve and/or expand its operations. Note that 2 CFR Part 200 specifically excludes the following types of organizations from the definition of nonprofit organization because they are separately defined in the regulation: (i) institutions of higher education; and (ii) state, local and federally-recognized Indian tribal governments. Institutions of Higher Education are defined at 20 U.S.C. 1001. Nonetheless, institutions of higher education who otherwise qualify as nonprofit organizations are eligible to apply as indicated in the Office of Management and Budget's July 2017 Frequent Questions on the Uniform Grant Guidance. Nonprofit organizations described in Section 501(c)(4) of the Internal Revenue Code that engage in prohibited lobbying activities as defined in Section 3 of the Lobbying Disclosure Act of 1995 are not eligible to apply. Institutions of Higher Education and Hospitals are not eligible. 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.
- Uses of assistance
Grants and cooperative agreements are available to support recipients' allowable direct costs in approved scopes of work plus allowable indirect costs, in accordance with established EPA policies and regulations. Funds may be used to support: (1) training to operators, staff, managers on the sustainable and effective management of small wastewater treatment systems; (2) assist operators to manage small wastewater treatment systems to achieve compliance; and (3) perform onsite training or technical solutions that focus on improving performance at local facilities. Specific uses and restrictions on funds will be described in detail in the competitive announcements. 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. 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
The term of the grant shall be determined at the time of grant award.
How to apply
- Preapplication coordination
EPA awards grants and cooperative agreements based on competitive applications submitted in response to EPA solicitations, considering relevance and likelihood of success of proposed projects. Regarding pre-application assistance with respect to competitive funding opportunities under this program description, EPA will generally specify the nature of the pre-application assistance, if any, that will be available to applicants in the NOFO. For additional information, contact the individual(s) listed in the NOFO.
- Criteria for selecting proposals
The evaluation and selection criteria for competitive awards under this assistance listing description will be described in the competitive announcement.
- 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.
- Deadlines
For competitive awards, deadlines will be specified in the NOFO.
- 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
Grant awards
Latest 10 of 27 listed here. See the rest on GovTribe.
Top recipients by federal obligations
| Rank | Recipient | Federal obligations | Share |
|---|---|---|---|
| 1 | Rural Community Assistance Partnership Incorporated | $36,260,336 | 35% |
| 2 | National Rural Water Association | $28,740,000 | 28% |
| 3 | University Of New Mexico | $24,940,000 | 24% |
| 4 | Pacific International Center For High Technology Research | $4,000,000 | 4% |
| 5 | Alaska Municipal League | $2,730,113 | 3% |
| 6 | New England Interstate Water Pollution Control Commission | $2,029,661 | 2% |
| 7 | Pacific Northwest Pollution Prevention Resource Center | $1,506,074 | 1% |
| 8 | University Of Tennessee | $1,042,991 | 1% |
| 9 | DES Moines Area Community College | $666,399 | 1% |
| 10 | Hudson Valley Regional Council, Inc. | $579,695 | 1% |
Federal obligations by fiscal year
| Fiscal year | Federal obligations |
|---|---|
| FY2025 | $49,298,760 |
| FY2024 | $579,695 |
| FY2023 | $40,616,814 |
| FY2022 | $12,000,000 |
Quick answers
What is Assistance Listing 66.446?
Assistance Listing 66.446 is Technical Assistance for Treatment Works (Clean Water Act [CWA] Section 104(b)(8)), a federal grant program run by Environmental Protection Agency.
What is the CFDA number for Technical Assistance for Treatment Works (Clean Water Act [CWA] Section 104(b)(8))?
Its CFDA number is 66.446: Assistance Listing numbers were called CFDA numbers before 2018.
How much funding has Assistance Listing 66.446 awarded?
27 grant awards under 66.446 have obligated $102,495,269 in federal funds to 10 recipients.
Who receives the most funding from 66.446?
The recipients obligated the most under Technical Assistance for Treatment Works (Clean Water Act [CWA] Section 104(b)(8)) are Rural Community Assistance Partnership Incorporated ($36,260,336), National Rural Water Association ($28,740,000) and University Of New Mexico ($24,940,000).
How much did 66.446 obligate in fiscal year 2025?
Grants under 66.446 obligated $49,298,760 in federal funds in fiscal year 2025.
Are there open grant opportunities under 66.446?
No opportunity listed under 66.446 is open now. The latest, Technical Assistance and Training for Rural, Small and Tribal Municipalities and Wastewater Treatment Systems, was posted on June 15, 2026.
On GovTribe
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