Skip to main content
U.S. flag

An official website of the United States government

Here’s how you know

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

HTTPS

Secure .gov websites use HTTPS
A lock (LockA locked padlock) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

    • Environmental Topics
    • Air
    • Bed Bugs
    • Cancer
    • Chemicals, Toxics, and Pesticide
    • Emergency Response
    • Environmental Information by Location
    • Health
    • Land, Waste, and Cleanup
    • Lead
    • Mold
    • Radon
    • Research
    • Science Topics
    • Water Topics
    • A-Z Topic Index
    • Laws & Regulations
    • By Business Sector
    • By Topic
    • Compliance
    • Enforcement
    • Laws and Executive Orders
    • Regulations
    • Report a Violation
    • Environmental Violations
    • Fraud, Waste or Abuse
    • About EPA
    • Our Mission and What We Do
    • Headquarters Offices
    • Regional Offices
    • Labs and Research Centers
    • Planning, Budget, and Results
    • Organization Chart
    • EPA History

Breadcrumb

  1. Home
  2. Water Infrastructure Finance and Innovation Act (WIFIA)
  3. How to Apply

WIFIA Public Borrowers

In the letter of interest, the prospective borrower provides information to demonstrate the project’s eligibility, financial creditworthiness, engineering feasibility, and impact on statutory scoring criteria. If EPA selects the project, the prospective borrower is invited to submit an application. EPA will only select projects that it expects might reasonably proceed to closing.

EPA updated its letter of interest and application forms in January 2025. For the remainder of the current funding round, the WIFIA program will continue to accept the earlier letter of interest and application forms, in addition to the updated forms to support borrowers that have already begun working on their letters of interest and applications.

The forms on this page are for public entities, including but not limited to, local governments, water districts, special utility districts, and other entities using taxes or system revenues to secure their loans. For private entities or public-private partnerships (P3s), please visit WIFIA Application Materials for Private Entities. If you are unsure which forms to use, please reach out to wifia@epa.gov for assistance.

WIFIA Forms

Letter of Interest

Prospective borrowers should submit a completed letter of interest form for their project to the WIFIA program. In the letter of interest, the prospective borrower provides information to demonstrate its project’s eligibility, financial creditworthiness, engineering feasibility, and impact on statutory scoring criteria.

  • Letter of Interest – Public Entities (pdf) (1.59 MB)

Application

If EPA selects the project, then the prospective borrower is invited to submit an application. EPA will only select projects that it expects might reasonably proceed to closing. The application will give EPA additional information on the proposed project costs, timeline, and approvals, as well as information on the borrower’s credit and legal background.

  • WIFIA Application – Public Entities (docx) (92.22 KB)
  • WIFIA Application – Project Information Spreadsheet (xlsx) (54.66 KB)

Reference Materials

These reference materials can help in filling out the letter of interest and application forms.

  • ​ Letter of Interest Checklist (docx) (66.65 KB)
    Prospective borrowers can use this checklist as a guide when completing the WIFIA Letter of Interest Form.
     
  • ​ Sample Letter of Interest (pdf) (1.72 MB)
    This document serves as an example of a completed WIFIA Letter of Interest.
     
  • Sample Financial Pro Forma (pdf) (24.55 KB)
    Prospective borrowers should provide a summary financial pro forma as part of their letter of interest submission. This document serves as an example of the type of information that prospective borrowers should include in the pro forma provided to the WIFIA program.
     
  • ​ Sources and Uses User Guide (pdf) (141.5 KB)
    Prospective borrowers need to complete a sources and uses table as part of the letter of interest and application process. This user guide provides a line-by-line description of what should be included in the sources and uses table.
     
  • WIFIA Template Term Sheet (pdf) (475.01 KB)
    The Template Term Sheet provides references for the potential terms and conditions that may be applicable in a WIFIA transaction with public system borrowers.

Water Infrastructure Finance and Innovation Act (WIFIA)

  • About WIFIA
    • Eligibility
    • Loan Process
    • Frequent Questions
  • WIFIA Solutions
    • Limiting Ratepayer Impacts
    • Once-in-a-Generation Project
    • Rising Costs
    • Multiple Funding Sources
    • Need Alternative Funding
    • Waiting for Grant Funding
    • Navigating Funding Process
    • Need to Move Quickly
    • Addressing Regional Issues
  • How to Apply
    • Available Funding
    • Public Borrowers
    • Private Borrowers
    • WIFIA SRF Borrowers
  • WIFIA Projects
    • Closed Loans
    • Pending Loans
    • WIFIA Annual Reports
  • Connect with the WIFIA Program
    • Future Webinars and Events
    • Monthly Office Hours
    • Schedule a Meeting
  • Program Resources
    • Program Handbook
    • Presentations and Factsheets
    • Laws and Regulations
    • Federal Requirements
Contact Us About the Water Infrastructure Finance and Innovation Act (WIFIA)
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on April 15, 2025
  • Assistance
  • Spanish
  • Arabic
  • Chinese (simplified)
  • Chinese (traditional)
  • French
  • Haitian Creole
  • Korean
  • Portuguese
  • Russian
  • Tagalog
  • Vietnamese
United States Environmental Protection Agency

Discover.

  • Accessibility Statement
  • Budget & Performance
  • Contracting
  • EPA www Web Snapshot
  • Grants
  • No FEAR Act Data
  • Plain Writing
  • Privacy
  • Privacy and Security Notice

Connect.

  • Data
  • Inspector General
  • Jobs
  • Newsroom
  • Regulations.gov
  • Subscribe
  • USA.gov
  • White House

Ask.

  • Contact EPA
  • EPA Disclaimers
  • Hotlines
  • FOIA Requests
  • Frequent Questions
  • Site Feedback

Follow.