Independent research tool — not a government agency. Official notices govern.Refreshed

Assistance Listing 66.958

Water Infrastructure Finance and Innovation (WIFIA)

ENVIRONMENTAL PROTECTION AGENCY

Assistance Listing 66.958, “Water Infrastructure Finance and Innovation (WIFIA),” is a federal program administered by ENVIRONMENTAL PROTECTION AGENCY. It provides direct loan assistance. GrantsJunction currently tracks 0 open, 0 forecasted and 0 closed opportunities under this listing. The agency reported $1.37B in obligations for fiscal year 2025.

Program objective

To accelerate investment in our nation's water and wastewater infrastructure by providing long-term, low-cost supplemental credit assistance under customized terms to creditworthy water and wastewater projects of national and regional significance. Selected projects shall demonstrate the broad range of project types that the WIFIA program can finance including wastewater, drinking water, stormwater, and water recycling projects. Funding priorities are announced with the release of each Notice of Funding Availability. The WIFIA program accelerates investment in water and wastewater infrastructure of national and regional significance by offering creditworthy borrowers loans for up to 49 percent of eligible project costs. For small communities of 25,000 or less people who face significant water infrastructure challenges and economic or administrative hardship accessing funding and financing, the WIFIA program may provide loans for up to 80 percent of eligible project costs. The WIFIA program can fund planning, design, and construction activities for a wide variety of eligible water infrastructure projects, including wastewater conveyance and treatment projects; drinking water treatment and distribution projects; stormwater management; non-point source pollution control; projects that enhance energy efficiency in the operation of a public water system or a publicly owned treatment works; desalination, aquifer recharge, and water recycling projects; acquisition of property if it is integral to the project or will mitigate the environmental impact of a project; and a combination of eligible projects secured by a common security pledge or submitted under one application by an SRF program. Eligible borrowers include: local, state, tribal, government entities, partnerships and joint ventures, corporations and trusts, and clean water and drinking water state revolving fund (SRF) programs. In addition, a set-aside of the WIFIA program, called the State infrastructure financing authority WIFIA (SWIFIA) program, authorized by Congress in section 4201 of America’s Water Infrastructure Act (AWIA) of 2018, provides loans exclusively to state revolving fund programs.

As published in the SAM.gov Assistance Listing.

Current opportunities under 66.958

No open or forecasted opportunities are currently posted under this listing. Programs often post notices on an annual cycle — see recently closed opportunities below for timing.

Eligible applicants (program level)

  • State
  • U.S. State Government (including the District of Columbia)
  • County Government (inclusive of boroughs in Alaska, parishes and other governmental entities with geographic regional control and authority)
  • Municipality or Township government (inclusive of cities, towns, boroughs (except in Alaska), and villages)
  • Interstate Organization
  • Nonprofit Organization
  • For-Profit Organization
  • Federally Recognized Indian/Native American/Alaska Native Tribal Government
  • Local

The entity applying for WIFIA credit assistance must be one of the following: a corporation, a partnership, a joint venture, a trust, a state or local government entity, agency, or instrumentality, a tribal government or consortium of tribal governments, a State Revolving Fund (SRF) program as defined by the Clean Water Act and the Safe Drinking Water Act.

Program-level eligibility from SAM.gov. Each funding notice sets its own requirements.

Reported obligations by fiscal year

Historical data · not a prediction
FY24$1.74B
FY25$1.37B
FY26$4.71B est.

Range and average of financial assistance (from the listing): Range: $10,000,000 to $727,000,000; Average: Approximately $157,000,000.

Source: SAM.gov Assistance Listing 66.958. Hatched bars are agency estimates. These totals do not indicate approval rates.

Frequently asked questions

What is ALN 66.958?

66.958 is the Assistance Listing Number for “Water Infrastructure Finance and Innovation (WIFIA).” Assistance Listing Numbers (formerly CFDA numbers) identify federal assistance programs; individual grant opportunities reference the listing they are funded under.

Who can apply under ALN 66.958?

The SAM.gov listing names these applicant types: State, U.S. State Government (including the District of Columbia), County Government (inclusive of boroughs in Alaska, parishes and other governmental entities with geographic regional control and authority), Municipality or Township government (inclusive of cities, towns, boroughs (except in Alaska), and villages), Interstate Organization, Nonprofit Organization, For-Profit Organization, Federally Recognized Indian/Native American/Alaska Native Tribal Government and Local. Each funding notice under the program sets its own eligibility, so check the specific opportunity.

How much funding does 66.958 provide?

The agency reported $1,367,292,089 in obligations for FY2025 in the SAM.gov Assistance Listing. These are program-wide totals reported by the agency, not a prediction of future awards.