The Late-Night Noise Limitation Program is a voluntary Port of Seattle initiative that monitors aircraft noise at Sea-Tac Airport between 12 a.m. and 5 a.m., using four close-in noise monitors to track takeoffs and landings that exceed established thresholds. Airlines that violate these thresholds receive penalty scores under the Port's Fly Quiet Incentive Program, which has evaluated airline noise compliance since 2005. The program, developed in 2019 as an outcome of the Sea-Tac Stakeholder Advisory Round Table (StART), aims to encourage air carriers to schedule flights during less noise-sensitive hours or switch to quieter aircraft.Open full document
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This brochure describes the Port of Seattle’s Late Night Noise Limitation Program, a voluntary initiative to reduce aircraft noise at Sea-Tac Airport between 12 a.m. and 5 a.m. by incentivizing airlines to fly during less noise-sensitive hours or transition to quieter aircraft. The program uses four close-in airport noise monitors and assigns penalty scores under the Fly Quiet Incentive Program for operations exceeding noise thresholds. It was developed as an outcome of the Sea-Tac Stakeholder Advisory Round Table (StART), formed in 2018.