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Summary: The City must assess the environmental impacts of public and private development proposals under Washington’s State Environmental Policy Act (SEPA). This is often referred to as “SEPA review” or “environ-mental review,” and is required for projects of a cer-tain size or scope as described in this Tip. During a SEPA review, we review environmental documents, an environmental checklist, traffic reports, and plans for proposed developments. The Seattle SEPA Ordinance is located in Chapter 25.05 of the Seattle Municipal Code (SMC).

Date Revised: 01/30/2020

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