TagNEPA(390)
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2026-05-01Appendix L: Surface Transportation (NEPA/SEPA)
This report analyzes existing traffic conditions around Seattle-Tacoma International Airport as part of the Sustainable Airport Master Plan (SAMP) Near-Term Projects Environmental Review. It examines 108 intersections—including signalized, stop-controlled, and uncontrolled locations—along key travel routes connecting the airport to surrounding communities, focusing on weekday PM peak hour traffic volumes. The study also includes freeway analysis of SR 518 and I-5 ramps and segments at the request of WSDOT. -
2026-04-29StART (SEA Stakeholder Advisory Round Table) Meeting
**SAMP Environmental Review: Detailed comparison between SEPA Environmental Impact Statement and NEPA Environmental Assessment processes for Near-Term Projects **Community Roundtable Updates**: Progress report on airport stakeholder engagement initiatives **Next Steps**: Implementation timeline for environmental review findings **Notable Action Item:** Public comment period opened for stakeholder input on airport development plans. -
2026-04-29
Start Meeting agenda 2026429
The StART (SEA Stakeholder Advisory Round Table) meeting scheduled for April 29, 2026 focuses on updates to the Sustainable Airport Master Plan (SAMP) Near-Term Projects and their environmental review process, including an explanation of how the state-level SEPA Environmental Impact Statement differs from the federal NEPA Environmental Assessment. The agenda includes a presentation by Port of Seattle staff, a community roundtable update, and an open public comment period. StART serves as a forum for cooperation between the Port of Seattle and communities neighboring Seattle-Tacoma International Airport. -
2026-04-29
StART Meeting Agenda — April 29, 2026
The StART (SEA Stakeholder Advisory Round Table) meeting scheduled for April 29, 2026 focuses on updates to the Sustainable Airport Master Plan (SAMP) Near-Term Projects and their environmental review process, including an explanation of how the state-level SEPA Environmental Impact Statement differs from the federal NEPA Environmental Assessment. The agenda includes a presentation by Port of Seattle staff, a community roundtable update, and an open public comment period. StART serves as a forum for cooperation between the Port of Seattle and communities neighboring Seattle-Tacoma International Airport. -
2026-04-16New York’s Expanding Environmental Regulatory Framework: A 2026 Outlook
Highlights Monitoring plan deadlines under New York’s mandatory greenhouse gas (GHG) reporting program (Part 253) begin September 1, 2026, with first emissions data reports due June 1, 2027. The New York State Department of Environmental Conservation’s (NYSDEC) 2026 Regulatory Agenda signals additional rulemakings ahead, including a potential statewide GHG emissions reduction program. NYSDEC finalized significant -
2026-04-13
KCIA Roundtable Advisory Committee
Meeting Objectives • Confirm topic priorities for 2026 Roundtable meetings • Discuss the Vision 2025 Preferred Alternative Concept Agenda 5:00 PM – Welcome (Ali Lee) 5:02 PM – Roll Call (Ayako Shapiro) 5:03 PM – Approve March Meeting Minutes (Ali Lee) 5:05 PM – Prioritization Exercise (Jenny Thacker) Topics identified during Feb 10th Ad Hoc -
2026-04-13King County International Airport Boeing Field Roundtable Advisory Committee Meeting Agenda: April 13, 2026
The King County International Airport (Boeing Field) Roundtable Advisory Committee held a meeting on April 13, 2026, to confirm topic priorities for 2026 meetings and discuss the Vision 2045 Preferred Alternative concept, including a Taxiway B environmental review. The agenda covered public comment, a new noise report, community engagement updates, and April public meetings, with presentations led by airport staff and consultants from RS&H. The committee represents a broad range of stakeholders, including neighborhood, labor, aviation, and business interests from the greater Seattle area. -
2026-03-24Sustainable Airport Master Plan Near-Term Projects Environmental Review: Additional Contract Authorization
Port Of Seattle Commission presentation (Item 8j supp) dated March 24, 2026 requesting $1,000,000 additional contract authorization for the Sustainable Airport Master Plan (SAMP) Near-Term Projects Environmental Review. Total authorizations including this request reach $9,750,000, following previous authorizations of $3,000,000 (11/10/2015), $3,400,000 (2/25/2021), and $2,350,000 (6/27/2023). Budget increase justified by enhanced outreach and engagement in -
2026-03-19Certified LIST of AGENCY RECORD March 19, 2026
The Federal Aviation Administration filed a certified index to the administrative record in two Ninth Circuit cases challenging the FAA's September 24, 2025, Finding of No Significant Impact/Record of Decision for near-term construction and development projects at Seattle-Tacoma International Airport. The petitioners—Vashon Island Fair Skies and the City of Burien—are contesting the agency's environmental review of the airport's Sustainable Airport Master Plan. The full administrative record was made available to petitioners' counsel via an online link on March 19, 2026. -
2026-01-26Three City Summary of Draft Mediation Issue Proposals
This document outlines 18 proposed mediation issues submitted by the cities of SeaTac, Burien, and Des Moines in response to the FAA's environmental review of Seattle-Tacoma International Airport's Sustainable Airport Master Plan (SAMP) expansion projects. The proposals seek voluntary commitments from the Port of Seattle and FAA covering a wide range of community concerns, including nighttime flight noise reduction, air quality monitoring, sound insulation for schools and homes, traffic improvements, and a community benefits fund. All proposals are designed to work within existing legal frameworks without requiring the FAA or Port to reopen the environmental assessment.