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STNI
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.

TagLegislation(21)

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  • 2025-10-31

    OLR Research Report

    A research report header or cover page from OLR (Office of Legislative Research) featuring a blue banner with official seal and title text.
    CategoriesKey Documents TagsLegislation
  • Legislation 2026

    A list of programs and changes to City, Port, State and Federal law we can and must implement in the upcoming legislative calendar. The SAMP is the largest and longest expansion in airport history. These policies will reduce noise, pollution, provide mitigation and compensation for decades of inequity. This is a blueprint not only for Sea-Tac, but for every community unfairly impacted by commercial aviation. Solve for Sea-Tac, solve for every airport.
    TagsLegislation, RCW53
  • 2025-02-24

    SB5652 will not move forward this year

    Bill to reduce health disparities at Sea-Tac misses key deadline We want to extend our deepest thanks to everyone who supported SB 5652, Senator Tina Orwall’s bill to help reduce environmental and health disparities for communities impacted by Sea-Tac Airport. Unfortunately, the bill did not advance past the legislative cutoff date and will not move
    CategoriesNews Stories TagsLegislation, SB5652
  • 2025-02-21

    State backs green aviation fuel plant as industry struggles to cut emissions

    By  Dominic Gates Seattle Times aerospace reporter Washington state has awarded a new $1.5 million grant for a planned sustainable aviation fuels and renewable diesel production facility projected to open in 2029 at Wallula Gap on the Columbia River. That’s a very small portion of the funding required to complete the facility being developed by
    CategoriesFrom The Web, News Stories TagsLegislation, SAF, Seattle Times, Sustainable Aviation Fuels
  • 2025-02-19

    SHB1303 hearing in House Appropriations Committee

    Substitute bill to address cumulative impacts faces stiff opposition Guillermo Morel: I’m here with Front and Centered, a network of 50 community-based organizations across the state working toward a just transition. We are led by communities of color and low-income populations. I want to take you back to 2021 when we passed the HEAL Act.
    CategoriesNews Stories TagsHB1303, Legislation, State of Washington
  • 2025-02-18

    SB5652 first hearing at Senate Environment Committee

    Bill to reduce health disparities at Sea-Tac gets community support and firm Port opposition Senator Tina Orwall’s introduced her bill to help reduce environmental and health disparities and improve the health of airport community residents, SB 5652 was heard in the Senate Environment, Energy & Technology Committee. Text of SB5652 SB 5652 aims to reduce
    CategoriesNews Stories TagsLegislation, SB5652
  • 2025-02-13

    Call To Action: Support SB5652 Tuesday, February 18 @ 1:30PM

    Sign in Pro and provide testimony. Help reduce noise and pollution for communities under the flight path! Senator Tina Orwall’s bill to help reduce environmental and health disparities and improve the health of airport community residents, SB 5652, is scheduled for a public hearing on Tuesday, 2/18 at 1:30 PM in the Senate Environment, Energy
    TagsLegislation, SB5652
  • 2025-01-23

    HB 1303 Bill Analysis – Increasing environmental justice by improving government decisions

    Analysis of Washington State House Bill 1303 which adds environmental justice considerations to SEPA review processes, requires environmental justice impact statements for projects in certain communities, and prohibits approvals for new air contaminant sources in specified communities under the Clean Air Act.
    CategoriesKey Documents, Legislation TagsAir Quality Monitors, Airport Noise Law, Legislation
  • 2025-01-22

    HIGHLINE FORUM – 2025 State and Federal Legislative Issues

    Agenda for Highline Forum meeting hosted by Port of Seattle focusing on 2025 state and federal legislative issues. The hybrid meeting includes public comments, administrative issues, legislative discussions, StART update, and round table updates.
    CategoriesRegular Events Tags2026 legislative session, Airport Committees, Legislation, Port Of Seattle
  • 2025-01-15

    HB1303-2025 (CURB act)

    The purpose of this act is to reduce the disparities in cumulative environmental and health impacts in Washington and improve the health of all Washington residents. To evaluate probable adverse environmental impacts on environmental justice under this chapter for a potentially impactful project located or proposed to be located in whole or in part in
    TagsLegislation

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Upcoming Events

  • Port of Seattle Commission Meeting – Resolution No. 3848
    Add to CalendarMTuesday Apr 28: 12:00am
    Port of Seattle

    Agenda Item 10b Resolution No. 3848: Port of Seattle Participation in City of Bellevue Tax Increment Area Approval of the Port’s participation in the city of Bellevue’s tax increment area, as authorized under RCW 39.114.020. Key Points: Authorization for City of Bellevue to enact increment area up to $500,000,000 in combined assessed valuation if connected

    [...]
  • Port of Seattle Regular Commission Meeting April 28, 2026
    Add to CalendarMTuesday Apr 28: 12:00pm
    17801 International Blvd, Seattle, WA 98158
    2026 04 28 RM Packet Pdf 1

    # New Business Items
    **Order No. 2026-04:** Directs Executive Director to explore a program facilitating secure area access for union business requirements at Seattle-Tacoma International Airport.

    **Resolution No. 3848:** Approves Port's participation in City of Bellevue's Tax Increment Area.

    **Fishermen's Terminal C-15 Building Improvements:** Authorization for Executive Director to approve funding to advertise and execute a major public works construction contract for project completion.

    [...]
  • StART (SEA Stakeholder Advisory Round Table) Meeting
    Add to CalendarMWednesday Apr 29, 5:00pm - 7:00pm
    Zoom Webinar
    Start Meetingagenda 2026429 Pdf 1

    - **SAMP Environmental Review**: Detailed comparison between SEPA Environmental Impact Statement and NEPA Environmental Assessment processes for Near-Term Projects
    - **Community Roundtable Updates**: Progress report on airport stakeholder engagement initiatives
    - **Next Steps**: Implementation timeline for environmental review findings

    **Notable Action Item:**
    Public comment period opened for stakeholder input on airport development plans.

    [...]

[See all...]


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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.
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This is the first study to combine a one-year mobile monitoring campaign with PMF (Positive Matrix Factorization) analysis to simultaneously estimate source-specific air pollution exposures and emission factors of different vehicle types. This methodology can be extended to other metropolitan areas.
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