Seattle-Tacoma International Airport's Late Night Noise Limitation Program is a voluntary initiative that monitors aircraft takeoff and landing noise levels between 12:00 a.m. and 5:00 a.m., comparing them against established decibel thresholds at four monitoring sites. Noise exceedances are tracked quarterly and airlines are notified when their flights exceed the limits. The program originated from community discussions in 2018 and has been in operation since Q3 2019, running alongside a Late Night Runway Use Agreement with the FAA.Open full document
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A presentation from Seattle-Tacoma International Airport outlining the Late Night Noise Limitation Program, a voluntary program that monitors noise levels of takeoffs and landings between 12:00am and 5:00am. The program establishes noise level thresholds at four monitoring stations, tracks exceedances quarterly, and contacts airlines regarding violations. The program originated from StART Noise Working Group discussions in 2018 and began monitoring in Q3 2019.
