Infrastructure Investment and Jobs Act (IIJA)

The Infrastructure Investment and Jobs Act (IIJA) provides a historic investment of $25 billion for U.S. airports to address repair and maintenance backlogs, reduce congestion and emissions, and drive electrification and other low-carbon technologies. While formerly referenced as the Bipartisan Infrastructure Law (BIL), the FAA and other federal agencies now primarily use the IIJA designation as the official terminology.

For the most up-to-date information and news regarding the Infrastructure Investment and Jobs Act, please visit the FAA's official page: https://www.faa.gov/iija

FY 2025 AIG SCHEDULE (pdf) - Effective as of 11/20/2024, subject to change.

Select a tab below to learn more about each IIJA program.

The Airport Infrastructure Grant (AIG) program delivers $14.5 billion in funding over five years (FY 2022–2026) to airports nationwide. This includes up to $2.39 billion for primary airports and up to $500 million for nonprimary airports.

Funds can be used for:

  • Runways and taxiways
  • Safety and sustainability projects
  • Terminal improvements
  • Airport transit connections and roadway projects

For FY 2025, the FAA has made $2.89 billion available to U.S. airports. To date, nearly $12 billion in AIG funding has been made available to airports across the country.

Key AIG Program Details:

  • AIG grants follow eligibility criteria similar to the Passenger Facility Charge (PFC) program, with some expanded eligibility
  • Allocated funds may change annually based on airport enplanements, cargo volume, or NPIAS development
  • Airports can combine annual AIG allocations into a single grant
  • All projects must be eligible and justified using AIP and PFC criteria
  • Federal share is 95% (subject to change - this is true for FY25 and FY26 AIG funding for nonprimary airports)
  • Funds cannot be transferred between airports
  • Design-only grants must begin construction within two years
  • Unobligated funds expire after four years
  • Funds cannot be used for debt service or as a local share for AIP projects

For more information, visit the FAA's AIG website: https://www.faa.gov/iija/airport-infrastructure

The AIG Funding Reallocation (AFR) Program represents a new competitive funding opportunity within the IIJA framework. AIG funds that are not under grant by the end of the fourth fiscal year will be made available for the FAA Contract Tower (FCT) and AFR competitive programs, with the first $100 million funding the FCT program and any remaining funding awarded through AFR.

AFR Program Timeline:

  • AIG FY 2022 funds become available October 1, 2025, and must be obligated by September 30, 2026
  • AIG FY 2023 funds become available October 1, 2026, and must be obligated by September 30, 2027
  • AIG FY 2024 funds become available October 1, 2027, and must be obligated by September 30, 2028
  • AIG FY 2025 funds become available October 1, 2028, and must be obligated by September 30, 2029
  • AIG FY 2026 funds become available October 1, 2029, and must be obligated by September 30, 2030

The FY2026 application period will open in Summer 2025. For more information, visit the FAA's AFR Program page: https://www.faa.gov/iija/airport-infrastructure/afr

The IIJA established the FAA Contract Tower Competitive Grant Program, providing $20 million annually (FY 2022–2026) plus additional funding from unobligated AIG funds.

The program supports 179 eligible airports within the contract airport traffic control tower program to:

  • Sustain, construct, repair, improve, rehabilitate, modernize, replace, or relocate non-approach control towers
  • Acquire and install air traffic control, communications, and related equipment for those towers
  • Construct FAA-certified remote towers

For FY 2025, another $20 million has been made available to upgrade and build control towers around the nation, including many small towns and municipal airports.

Application Process:

  1. Review the Notice of Funding Opportunity (NOFO)
  2. Ensure registration with the System for Award Management (SAM) and maintain an active unique entity identifier
  3. Complete and submit FAA Form 5100-144, Infrastructure Investment and Jobs Act, Airport Terminal and Tower Project Information, including the tower section
  4. Submit electronically via the form's "Submit" button or by emailing IIJAAirports@faa.gov

For more information, visit the FAA's FCT program page: https://www.faa.gov/iija/airport-infrastructure/fct

The Airport Terminal Program (ATP) provides $5 billion in competitive grants over five years ($1 billion annually from 2022-2026) for airport terminal development projects.

The program aims to:

  • Replace aging terminal infrastructure
  • Increase terminal energy efficiency and accessibility
  • Improve airport access for historically disadvantaged populations
  • Achieve ADA compliance and expand accessibility
  • Support energy-efficient upgrades and LEED accreditation
  • Improve airfield safety through terminal relocation
  • Encourage competition and create good-paying jobs

Funding Distribution:

  • Large hub airports: up to 55% of total funding
  • Medium hub airports: up to 15% of total funding
  • Small hub airports: up to 20% of total funding
  • Non-hub and non-primary airports: at least 10% of total funding

For FY 2025, another $1 billion has been made available for aging airport infrastructure, funding projects across the country to build, modernize and upgrade airport facilities, and develop intermodal connections between airports and other transportation modes.


Application Process:

  1. Review the Notice of Funding Opportunity (NOFO)
  2. Register with SAM and maintain a current unique entity identifier
  3. Complete FAA Form 5100-144, Infrastructure Investment and Jobs Act, Airport Terminal and Tower Project Information
  4. Submit the form electronically using the "Submit by Email" button
  5. Applications must be submitted by the NOFO deadline

For more information, visit the FAA's Airport Terminal Program page: https://www.faa.gov/iija/airport-terminals