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Airport Improvement Program (AIP)


The Airport Improvement Program (AIP) provides grants to public agencies — and, in some cases, to private owners and entities — for the planning and development of public-use airports that are included in the National Plan of Integrated Airport Systems (NPIAS). See the AIP Glossary for a description of AIP-related terms.

Order 5090.5, Formulation of the NPIAS-ACIP

This Order establishes guidelines for managing and maintaining two federal plans that are essential to airport development: the National Plan of Integrated Airport Systems (NPIAS) and the Airports Capital Improvement Plan (ACIP). The Order also discusses the NPIAS project database that supports these plans and its use for preparing the Secretary of Transportation's biennial NPIAS Report. This new Order replaces both Order 5100.39A, Airports Capital Improvement Plan and Order 5090.3, Field Formulation of the National Plan of Integrated Airport Systems (NPIAS).

Advisory Circulars (ACs)

Airport Competition Plans

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Popular Forms

Airport Improvement Program
Subject/Title Number Notes
Request for Advance or Reimbursement (PDF) SF 270 This is a fillable PDF.
Application for Federal Assistance - fillable PDF (PDF)
Note: Some browsers have trouble opening this file. If you experience this, save the PDF to your desktop and open the file from there.
SF 424 See the Sample SF 424 for CARES Act applications. (Sample applies to non-development grants only. For CARES Act Airport Grants for airport development, contact your ADO or Regional office.)

This is a fillable PDF.
Instructions for SF 424 (PDF)

Application for Development and Equipment Projects (Parts II–IV) 5100-100 Continuation of SF 424 for application for land, development, and equipment projects
Instructions (included in form)
Part II A & C
Part III A–E
Part IV
Construction Project Final Acceptance - Airport Improvement Program Sponsor Certification 5100-129 Airport sponsors use this form to certify they have completed or will complete key requirements before final project acceptance of construction projects funded under the Airport Improvement Program.
This is a fillable PDF.

Recent Federal Register Notices

Recent Federal Register Notices
Subject/Title Date
Deadline for Notification of Intent To Use the Airport Improvement Program (AIP) Primary, Cargo, and Nonprimary Entitlement Funds Available to Date for Fiscal Year 2021 (86 FR 10070) (PDF) 2/18/2021
Deadlines for Notice of Intent and Submission of Final Grant Application for Airport Improvement Program Primary, Cargo, and Nonprimary Entitlement Funds Available to Date for Fiscal Year 2020 (85 FR 22784) (PDF)
Note: This action extends to May 4, 2020, and June 15, 2020, respectively, the deadlines for an airport sponsor to give notice of intent to use FY 2020 AIP entitlement funds and to submit a final grant application.

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