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Use the guidance on this page to appropriately disclose potential project impacts through the NEPA and SEPA (National and State Environmental Policy Acts) processes for Washington State Department of Transportation (WSDOT) environmental documents. Documents prepared under Local Programs (LP) should visit the LP Environmental Services webpage.
Read Chapter 400: Environmental Review and Transportation Decision Making of the Environmental Manual to learn more about our NEPA and SEPA processes as shown in the graphic below.
View this graphic for an overview of the NEPA process (pdf 282 kb)
The level and type of analysis required for a project varies by discipline and depends on the significance, complexity, and contextual setting of the actions being taken. Although most of the agency’s projects fit categories of exclusion, the complexity of the EA/EIS processes requires more guidance.
Before you begin documenting project impacts, read these documents to understand the Washington State Department of Transportation’s (WSDOT) role in the environmental documentation and review process of a federal project:
The FHWA Stewardship and Oversight Agreement with WSDOT (pdf 1 mb) documents roles and responsibilities related to project approvals and methods of oversight to deliver the Federal-aid Highway Program in accordance with Federal requirements.
The NEPA Documentation Roles and Responsibilities (pdf 149 kb) table defines the roles and responsibilities of WSDOT project teams, Environmental Services Office (ESO) Discipline and NEPA Specialists, and the Federal lead agency at specific phases of the environmental documentation process.
The Federal Nexus Requirement (pdf 736 kb) table can help you understand which regulations your project must comply with based on your federal nexus.