TagAirport Improvement Program(51)

This letter from Edward G. Tatum, Manager of the FAA Airports Division, provides interim answers to the Port of Seattle's questions about federal funding and guidelines for airport noise remedy programs near Sea-Tac Airport. It outlines key details such as 80% federal cost coverage under the Airport Safety and Noise Abatement Act, eligibility criteria for sound insulation and property purchase assistance programs, and interior sound level standards based on EPA recommendations. The letter acknowledges that the FAA and Port of Seattle are breaking new ground together in developing policies that could serve as a nationwide model for noise abatement programs.

The Sound Insulation Treatment Repair and Replacement Program Act, introduced by Rep. Adam Smith (WA-09), would allow the FAA to waive a rule that currently prevents federal Airport Improvement Program (AIP) funds from being used more than once on the same home. The bill addresses problems caused by poor-quality materials and faulty installations from early noise mitigation programs in the 1980s and 1990s, which left some homeowners dealing with mold, structural damage, and non-functioning insulation at their own expense. Airports would not be required to participate, but those that choose to could repair or replace defective sound insulation in homes still within the 65 DNL noise contour, provided an FAA-compliant noise auditor verifies the issues stem from improper installation or faulty materials rather than homeowner neglect.

The FAA sent a letter to Washington State's Aviation Director in October 2025 reviewing how the state collects and spends aviation fuel taxes, noting that despite having an approved compliance plan, the state has still not provided actual tax collection figures after 11 years. The FAA flagged concerns about three types of taxes — aircraft fuel tax, sales and use taxes, and environmental taxes (HST and PPT) — questioning whether the environmental tax revenues are being properly directed toward aviation purposes. The agency also reviewed over $97 million in state appropriations claimed as offsets, finding more than $82 million ineligible and nearly $15 million requiring further justification before a final compliance determination can be made.

This presentation from the 41st Annual AAAE Airport Law Workshop covers the basics of Grant Assurances — the federal obligations airports must fulfill in exchange for receiving federal funding under the Airport Improvement Program (AIP). Grant Assurances are prescribed by federal statute (49 U.S.C. 47106 & 47107) and are incorporated into grant agreements, which include both general and special conditions. While not laws themselves, these assurances are binding contractual commitments that airport sponsors accept when they receive AIP funding.

The FAA has proposed updates to its Airport Improvement Program (AIP) grant assurances to reflect new requirements from the FAA Reauthorization Act of 2024 and recent executive orders. Key changes include removing older equity- and climate-related executive orders, adding new ones focused on free speech and ending DEI programs, and introducing a new assurance requiring airports to continue offering leaded aviation fuel (100LL) until a safe unleaded replacement is widely available. Public comments on these changes were accepted through May 9, 2025.