This is the agenda for the Port of Seattle Commission Regular Meeting held on May 26, 2026, covering a range of port business items including infrastructure projects at Seattle-Tacoma International Airport (SEA). Key topics include the S Concourse Evolution program (authorized up to $300 million), the Main Terminal Improvement Program emergency power design, and a briefing on the Sustainable Airport Master Plan Near-Term Projects Environmental Review, including a SEPA Draft Environmental Impact Statement. The meeting was held both in person at Sea-Tac Airport and virtually via Microsoft Teams.

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Meeting agenda for the Port of Seattle Commission regular meeting scheduled for May 26, 2026. The hybrid meeting covers consent agenda items, new business including Norwegian Cruise Line lease amendments and emergency power design approval, and presentations on childcare center feasibility and environmental impact statements.

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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.

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