TagPart 150(262)

Appendix E of the Seattle-Tacoma International Airport Part 150 Study documents the consultation and correspondence process, including meetings of a Technical Review Committee (TRC) held between 2024 and 2025, briefings for local jurisdictions such as Tukwila, Burien, Des Moines, SeaTac, and King County, and a Stakeholder Advisory Roundtable briefing. The TRC, established by the Port of Seattle, brought together key community and organizational representatives to provide technical input on aircraft noise levels and land use impacts under federal guidelines. While the TRC advised on the study, final decision-making authority remained with the Port of Seattle, with the FAA responsible for approving Noise Exposure Maps and the Noise Compatibility Program.

This document is Appendix G of the Seattle-Tacoma International Airport Part 150 Noise Study, compiling public comments and official responses gathered during the study's development. It covers a wide range of topics organized into three main areas: Part 150 regulations and noise exposure maps (including noise metrics, flight tracks, and FAA guidelines), current airport operations and community concerns (such as flight paths, nighttime operations, and the sound insulation program), and miscellaneous issues like health effects, air quality, and property values. Comments were collected through multiple channels including public open houses, workshops, the study website, and email.

Agenda and facilitation slides for the in-person SEA Stakeholder Advisory Round Table (StART) meeting held August 26, 2026, organized by the Port of Seattle. Topics include StART Operating Procedures discussion, Part 150 Noise Study update, Aviation Noise Working Group update, Policy Working Group update, and public comment. Facilitation provided by Uncommon Bridges (Andres Mantilla, Julia

Meeting summary for TRC Meeting #7 of the SEA Part 150 Noise Study, held August 10, 2026 via Zoom, facilitated by Ryan McMullan and Tom Fagerstrom of Port Of Seattle with ESA consultants Chris Nottoli and Scott Tatro. Topics include analysis of Noise Compatibility Program (NCP) measures: increased glideslopes for arrivals (3.0 to 3.5 degrees