The Port of Seattle Commission adopted Resolution No. 3821 on April 16, 2024, establishing tree replacement standards for the Airport Activity Area at Seattle-Tacoma International Airport (SEA) and approving a SEA Land Stewardship Plan. The resolution fills a regulatory gap, as no tree replacement rules previously applied within the Airport Activity Area, and sets guidelines requiring that trees cleared for airport development and operations be replaced using a holistic ecological approach. The plan, treated as a living document subject to periodic updates, aims to maintain healthy, self-sustaining forests and improve environmental health for surrounding communities.Open full document
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Port of Seattle Commission Resolution No. 3821 adopts the SEA Tree Replacement Standards for the Airport Activity Area and the SEA Land Stewardship Plan for Seattle-Tacoma International Airport. The resolution establishes tree replacement standards for Port development activities within the Airport Activity Area, which previously lacked such standards unlike surrounding municipalities. The plan emphasizes a holistic ecological approach to managing trees, forests, and other habitats in alignment with the Port’s Environmental Land Stewardship Principles.