This document outlines the forty most frequently asked questions about the National Environmental Policy Act (NEPA), covering topics such as how agencies evaluate a range of alternatives, the role of environmental impact statements (EIS), and the use of environmental assessments (EA). It provides plain-language guidance on requirements like the no-action alternative, mitigation measures, public comment periods, and records of decision. While not specific to airport noise, it serves as a foundational reference for understanding the federal environmental review process that governs major infrastructure projects such as those at Sea-Tac Airport.Open full document
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This document lists and answers 40 frequently asked questions about the National Environmental Policy Act (NEPA) regulations, covering topics such as the range of alternatives, no-action alternatives, environmental impact statements, scoping, cooperating agencies, and environmental assessments. It provides detailed guidance on how federal agencies should interpret and apply NEPA requirements, including questions about alternatives outside agency jurisdiction, mitigation measures, and findings of no significant impact.