TagPart 150(269)

The StART (SEA Stakeholder Advisory Round Table) meeting scheduled for June 24, 2026, focuses on presenting findings from the State Environmental Policy Act (SEPA) Draft Environmental Impact Statement for Seattle-Tacoma International Airport's Sustainable Airport Master Plan Near-Term Projects, published May 22, 2026. The agenda includes a presentation by Port of Seattle environmental staff, an update on the Part 150 Noise Study and Aviation Noise Working Group, and a public comment period. The meeting is held via Zoom, with a tentative follow-up session planned for August 26, 2026.

Appendix H of the Seattle-Tacoma International Airport (Sea-Tac Airport) Part 150 Study, containing official Noise Exposure Maps (NEMs) for 2022 Existing Conditions and 2032 Future Conditions, signed by Sarah Cox, Director of Aviation Environment & Sustainability, Port of Seattle, dated 06/20/26. Includes Aviation Environmental Design Tool (AEDT) flight tracks — North Flow and South Flow

The Port of Seattle submitted this Noise Exposure Map (NEM) Report to the Federal Aviation Administration under 14 CFR Part 150, documenting aircraft noise levels around Seattle-Tacoma International Airport for 2022 (existing conditions) and 2032 (projected future conditions). The report was prepared by Environmental Science Associates and certified by the Port's Director of Aviation Environment and Sustainability on June 26, 2026, confirming that current airport operations remain consistent with the 2022 data. It includes documentation of public and agency consultation, noise contour maps showing areas exposed to DNL 65+ decibel levels, and supporting forecasts of aircraft activity through 2032.

Presentation slides for the sixth meeting of the Part 150 Study Technical Review Committee (TRC) for Seattle-Tacoma International Airport, held June 8, 2026. The meeting covered potential Noise Compatibility Program (NCP) measures including noise abatement, land use, and program management. The agenda also included a review of the previous meeting summary, project schedule, and future

Presentation slides from the Maryland Aviation Administration (MAA) and BWI Marshall Airport Roundtable Technical Subcommittee covering aviation noise outcomes and next steps. Topics include expanded DNL contours below 65DNL, separation of East and West Flow contours, NextGen implementation impacts, FAA Instrument Flight Procedure (IFP) Gateway filing, and an upcoming 14 CFR Part 150 Study beginning