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STNI

STNISea-Tac Noise.Info

  • Solve for Sea-Tac. Solve for every airport.
  • Since 2016, working to obtain justice for everyone living under the flight path.
  • Less Noise. Cleaner Air. Better Public Health. Compensation.
  • Everything you think you know about the airport is wrong.

TagAIP(61)

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  • 2025-05-09

    Letter from San Francisco International Airport to FAA re: Proposed Modifications to Airport Improvement Program Grant Assurances (Docket FAA 2025-0605)

    San Francisco International Airport (SFO) submitted formal comments to the FAA on May 9, 2025, opposing proposed changes to Airport Improvement Program (AIP) Grant Assurances, arguing the modifications lack legal clarity and were being rushed into effect mid-fiscal year. SFO raised concerns that incorporating certain presidential Executive Orders into grant conditions is legally problematic, as those orders are directed at federal agencies rather than state or local governments. The airport requested a 30-day comment period extension and asked that any new requirements not take effect before the start of fiscal year 2026.
    TagsAIP, Airport Improvement Program, Executive Orders, FAA, San Francisco International Airport, SFOFolderSan Francisco
  • 2025-04-25

    FAA to roll back environmental, climate and Civil Rights commitments in Airport Grant rules

    Executive Orders have significant impact on environmental justice and lead The Federal Aviation Administration (FAA) has issued a notice updating the Airport Improvement Program (AIP) grant assurances, making several important changes that airport-affected communities should know about. These new rules take immediate effect for Fiscal Year 2025 AIP grants, but the FAA is accepting public
    CategoriesNews Stories TagsAIP, FAA, Federal Register
  • 2025-04-25

    FAA/DOT Issues Significant Updates to Grant Programs

    Within the past few days, the FAA and U.S. DOT took several significant steps toward aligning federal grant programs with the Trump administration’s policy priorities and objectives, especially as set forth in a series of Executive Orders issued early in this administration. The following documents are of considerable importance to airport sponsors and their compliance
    CategoriesFrom The Web TagsAIP, Kaplan Kirsch Rockwell
  • Federal register 2025 07224 aip grants pdf 1
    2025-04-25

    Airport Improvement Program (AIP) grant assurances

    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.
    CategoriesNews Stories TagsAIP, Airport Improvement Program, Executive Orders, FAA, Federal RegisterFolderFAA
  • 2025-04-25

    Airport Improvement Program (AIP) grant assurances

    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.
    CategoriesNews Stories TagsAIP, Airport Improvement Program, Executive Orders, FAA, Federal RegisterFolderFAA
  • 2025-04-24

    Trump’s Transportation Secretary Sean P. Duffy: Follow the Law

    Thursday, April 24, 2025 WASHINGTON, D.C. – U.S. Transportation Secretary Sean P. Duffy issued a reminder to all recipients of federal transportation funding that they must comply with federal laws. Non-compliance may lead to enforcement actions. “Federal grants come with a clear obligation to adhere to federal laws,” said U.S. Transportation Secretary Sean P. Duffy.
    CategoriesFrom The Web TagsAIP, FAA, USDOT
  • 2024-10-22

    Sea-Tac Airport Capital Funding Breakdown 2025–2029 — Draft Plan of Finance (Page 21)

    A presentation slide showing the Airport Capital Funding breakdown of $4,918.9 million for 2025–2029, with the largest source being Future Revenue Bond Proceeds at $3,395.9 million. The slide notes that 92% is funded from operating cash flow and revenue bonds, with $364M in capital grants (AIP) allocated to projects including S Concourse Evolution, Noise Insulation projects, and Checkpoint 1 Relocation.
    TagsAIP, Airport Improvement Program, Property Tax Levy, Sea-Tac Airport, Tax LevyFolderTax Levy 2025
  • 2024-05-18

    2025 Federal Aviation Reauthorization Wins for Washington – Alternative Aviation Fuel Investments

    Promotional graphic from U.S. Representative Adam Smith (Washington's 9th District) highlighting provisions in the 2025 Federal Aviation Reauthorization bill focused on alternative aviation fuel investments, including study of electric and hydrogen-powered aircraft integration, expanded alternative fuel research, and coordinated strategies for new aviation fuel systems under the Airport Improvement Program.
    CategoriesLegislation, Press Release TagsAdam Smith, AIP, Airport Improvement Program, Alternative Fuels, Aviation Emissions, Aviation FuelFolderSAF
  • 2024-05-07

    Handwritten notes on airport grant assurances and noise mitigation

    Handwritten notes reviewing an FAA document on airport grant assurances, referencing noise mitigation policy and Kandahar Corridor Syndrome (KCS). The notes criticize the postponement of noise mitigation efforts in favor of the SAMP (Sustainable Airport Master Plan), quoting language suggesting 'little or no downside for the clients' and expressing concern that passengers and airlines are being prioritized over local communities. A URL referencing FAA airport grant assurances (airport-sponsor-assurances-aip(1).pdf) is also included.
    TagsAIP, FAA, Handwritten Notes, Noise Mitigation, SAMPFolderSP #2
  • 2024-05-06

    Noise related AIP grants for SeaTac 2002-1018

    This document details noise-related Airport Improvement Program (AIP) grants awarded to Seattle-Tacoma International Airport (Sea-Tac) from 2002 through 2015, covering purposes such as noise mitigation for residences and public buildings, land acquisition for noise compatibility, and noise compatibility plan studies. Grant amounts range from hundreds of thousands to over eleven million dollars, targeting properties within various Day-Night Level (DNL) noise contours of 65-69 and 70-74 DNL. An accompanying federal assistance application (SF-424) shows a 2015 grant totaling approximately $4.8 million for property acquisition, relocation, and sound insulation, signed by Port of Seattle's Managing Director of Aviation.
    TagsAIP, Grants, Noise Mitigation, Port Of Seattle, Sea-Tac AirportFolderSP #1

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Upcoming Events

  • Part 150 NCP Workshop — Burien
    Add to CalendarMSaturday Oct 17: 10:00am

    Attend a Port of Seattle open house on the Part 150 Study Noise Compatibility Program (NCP). The Part 150 program determines the noise boundary around the airport and opportunities for noise mitigation such as sound insulation.

    [...]
  • Part 150 NCP Workshop — SeaTac
    Add to CalendarMMonday Oct 19: 6:00pm

    Attend a Port of Seattle open house on the Part 150 Study Noise Compatibility Program (NCP). The Part 150 program determines the noise boundary around the airport and opportunities for noise mitigation such as sound insulation.

    [...]
  • Part 150 NCP Workshop — Des Moines
    Add to CalendarMTuesday Oct 20: 6:00pm

    Attend a Port of Seattle open house on the Part 150 Study Noise Compatibility Program (NCP). The Part 150 program determines the noise boundary around the airport and opportunities for noise mitigation such as sound insulation.

    [...]

[See all...]


Issues

Sea-Tac Airport is currently undergoing the largest and longest expansion in its history, collectively known as the Sustainable Airport Master Plan (SAMP). Some of it you can already hear, but you’re probably not aware of what it all means. Here’s what you need to know.
read more...

Read This!

As the source for federal transportation grants, the Puget Sound Regional Council was charged with developing a system to meet the growing need for commercial aviation. When the search for a second airport failed, they authorized the Port of Seattle to build the Third Runway, with a mandate to develop a noise abatement and mitigation program. In their effort to stop the Third Runway, the ACC argued over every detail of the Port's efforts--including property buyouts and sound insulation. The dispute was meant to be settled by a three member Expert Arbitration Panel. This is their final report. It finds 2-1, that the Port's program was insufficient in several respects. Despite that, funding for the Third Runway was approved by the PSRC, and the 'Port Package' program, proceeded largely unchanged. Expert Arbitration Panel's final decision finding that the Port of Seattle had not shown sufficient reduction in real on-the-ground noise impacts to satisfy noise reduction conditions required for approval of a third runway at Sea-Tac International Airport. The majority decision concluded the Port's noise abatement programs were insufficient despite being impressive in scope.
continue...

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