TagANCA(34)

The Airport Noise and Capacity Act of 1990 (ANCA) established a national framework for managing aviation noise, requiring the Secretary of Transportation to create a uniform noise policy that phases out louder Stage 2 aircraft and regulates restrictions on quieter Stage 3 aircraft. The law ensures that any local airport noise restrictions—such as limits on flight hours or aircraft operations—go through a formal federal review process to prevent inconsistent, patchwork rules that could disrupt the national air transportation system. Passenger facility fees collected at airports may be used to fund noise reduction efforts and increase airport capacity.

This June 1982 report, produced by the Port of Seattle, provides an update on noise exposure levels at Seattle-Tacoma (Sea-Tac) International Airport. It documents the extent of aircraft noise affecting surrounding communities, serving as an official record to inform airport noise management and land-use planning policies. The report was part of ongoing efforts by the Port of Seattle to monitor and address the impact of airport operations on nearby residents.

This 1978 document outlines the structure and functions of a Policy Advisory Committee (PAC) formed to oversee implementation of the Sea-Tac Airport Communities Plan, including long-term monitoring of airport noise issues and making recommendations to King County and Port of Seattle officials. The 12-member committee draws representatives from King County, local governments, businesses, schools, airlines, and community citizens. It also details noise exemption rules for daytime aircraft testing and maintenance at Seattle-Tacoma International Airport, specifying conditions such as permitted hours (7 a.m. to 10 p.m.) and geographic boundaries defined by the 'NEF 45' noise exposure contour line.