A 1974 Washington State law (Chapter 121, House Bill 1328) authorizes port districts operating busy airports to take action against jet aircraft noise affecting nearby communities. Programs available include buying affected properties, soundproofing structures, and providing mortgage insurance to residents who cannot obtain it due to noise impact — all within defined geographic boundaries around runways. Funding may come from federal grants, airport revenues, and general obligation bonds up to one-eighth of one percent of taxable property value in the port district.Open full document
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Washington State legislation (House Bill No. 1328, Chapter 121) authorizing port districts operating airports with more than twenty scheduled jet aircraft flights per day to undertake programs to control and abate aircraft noise. The act defines ‘impacted areas’ near runways and authorizes programs including property acquisition, soundproofing, mortgage insurance, and land management. It also establishes funding mechanisms including revenue bonds and general obligation bonds.