Noise Exposure Map Report: 14 CFR Part 150 Study

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.

Notes

Noise Exposure Map (NEM) Report for Seattle-Tacoma International Airport (STIA), prepared by Environmental Science Associates (ESA) for Port Of Seattle under 14 CFR Part 150. Covers 2022 existing conditions NEM and 2032 future conditions NEM, submitted to the FAA under Title 14 CFR Part 150, Subpart B, Section 150.21. Includes FAA checklist, Sponsor’s Certification signed June 26, 2026 by Director of Aviation Environment and Sustainability, DNL 65+ noise contours, aircraft activity forecast, fleet mix, flight procedures, public consultation documentation (Appendices E, F, G), and consultation with planning agencies, Federal officials, and aeronautical users. Updates the previously approved 2014 Part 150 Study NEM. Document identifier ESA/D202201341.00.

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