TagPart 150(263)

This May 1998 document from the Barnard Dunkelberg & Company Team presents a FAR Part 150 Study Update for Seattle-Tacoma International Airport, covering the history of federal aviation noise policy. It traces key regulatory milestones including the FAA Aviation Noise Abatement Policy of 1976, the Aviation Safety and Noise Abatement Act of 1979, and the Airport Noise and Capacity Act of 1990. The document explains what FAR Part 150 is, what it means for airport operators and surrounding communities, and how voluntary land-use compatibility studies evolved into formal regulatory requirements over time.

This Spring 1998 newsletter from the Port of Seattle provides an update on the Seattle-Tacoma International Airport FAR Part 150 Aircraft Noise and Land Use Compatibility Study, which aims to reduce the impact of aircraft noise on surrounding neighborhoods. The study involves measuring existing and predicting future noise levels, evaluating noise reduction and land use alternatives, and producing noise exposure maps using the FAA's Integrated Noise Model. Citizens raised key concerns at an initial open house, including adherence to flight tracks, ground noise, and expansion of sound insulation programs, with findings to be presented at a second public open house on July 23, 1998.

A 1998 internal memo from Ryk Dunkelberg to Richard Kennedy outlines the schedule of eight public CAC/TAC meetings planned through 1999 for the Part 150 Noise Study Update at Sea-Tac Airport, along with broader public engagement activities such as workshops, newsletters, and a project website. The memo also explains the Port of Seattle's cautious policy toward FAR Part 161 aircraft noise regulations, noting that no such studies have ever been successfully approved by the FAA and that pursuing one could jeopardize existing noise abatement programs. Additionally, it addresses the potential acquisition of residential properties in the Approach Transition Areas, stating that no decision has been made and that further study and federal funding would be required.

The MAC Part 150 Residential Sound Insulation Program completed sound insulation work on 3,673 homes near Minneapolis-St. Paul International Airport between 1992 and 1997, at a total cost of $76.6 million. Funding came from two sources: $28.7 million in FAA Airport Improvement Program (AIP) grants and $48.6 million in MSP Passenger Facility Charges (PFC). The program grew significantly over its six-year run, peaking in 1996 with 1,002 homes insulated at a cost of $20.7 million.

Seattle-Tacoma International Airport operates one of the nation's most comprehensive airport noise management programs, divided into Noise Abatement measures — such as restricting the noisiest Stage 2 jets at night, controlling ground engine use, and routing flight paths over fewer homes — and Noise Remedy programs that help affected residents through home sound insulation, sales assistance, and a completed acquisition program that purchased 1,400 severely impacted homes. The Port of Seattle also monitors noise levels through an 11-station system and tracks flight paths using FAA radar data to ensure compliance. Residents can report concerns or request information 24 hours a day via the Noise Information/Complaint Line at 433-5393 or toll-free at 1-800-826-1147.

This document compares a 1996 Expert Arbitration Panel's findings on aircraft noise at Seattle-Tacoma International Airport with the FAA's 2013-2018 Part 150 Noise Compatibility Program approval, revealing that many of the same unresolved noise abatement and mitigation issues identified decades ago remain unaddressed today. Communities surrounding Sea-Tac — including Burien, Normandy Park, and Des Moines — continue to experience increasing noise and air pollution as flight operations have grown from 387,000 in 1995 to over 438,000 in 2018. The document calls out regulators and the Port of Seattle for failing to make meaningful progress on commitments such as nighttime flight restrictions, engine run-up controls, and departure corridor compliance.

This document presents the Seattle-Tacoma International Airport FAR Part 150 Noise Compatibility Program: 1993 Amendments, submitted by the Port of Seattle and approved by the Federal Aviation Administration on May 18, 1994. It outlines a series of noise mitigation measures—including sound insulation programs for homes and public buildings, a transaction assistance program for affected property owners, and an expanded noise monitoring system—aimed at reducing noncompatible land uses around Sea-Tac Airport. Three new measures were also recommended, covering funding for land use planning, a community planners forum, and ongoing operations review and noise exposure map updates.

This document presents the Seattle-Tacoma International Airport FAR Part 150 Noise Compatibility Program: 1993 Amendments, submitted by the Port of Seattle and approved by the Federal Aviation Administration on May 18, 1994. It outlines updates to existing noise-reduction measures—including sound insulation for homes and public buildings, a transaction assistance program, and an expanded noise monitoring system—as well as newly recommended measures such as community planning forums and operational reviews. The program aims to reduce noncompatible land uses around Sea-Tac Airport and prevent the introduction of new ones.