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SEPA/NEPA

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What is SEPA?

The Washington State Environmental Policy Act (SEPA) provides a way to identify possible environmental impacts that may result from governmental decisions. These decisions may be related to issuing permits for private projects, constructing public facilities, or adopting regulations, policies or plans. Information provided during the SEPA review process helps agency decision-makers, applicants, and the public understand how a proposal will affect the environment. This information can be used to change a proposal to reduce likely impacts. For more information about the SEPA process, visit the Washington State Department of Ecology.

What is NEPA?

The National Environmental Policy Act (NEPA) was enacted by Congress in December of 1969, and signed into law by President Nixon on January 1, 1970. Federal agencies must comply with the NEPA process, which examines the environmental impact of projects resulting from government decisions. The Port of Seattle works with Federal Aviation Administration and Environmental Protection Agency surrounding NEPA decisions. For more information on the NEPA process, visit the Council of Environmental Quality.

Documents

Title Sort descending Category
2019-01 Bankline DNS - Signed Maritime
2019-01 Bankline Environmental Checklist Maritime
2019-01 Bankline Final DNS - Signed Maritime
2019-02 SEA Airport Interim Fire Station Replacement: Environmental Checklist Sea-Tac Airport
2019-02 SEA Airport Interim Fire Station Replacement: Final DNS Sea-Tac Airport
2019-03 Notice of Scoping Period Extension for Terminal 46 Cruise Terminal Development Maritime
2019-03 Terminal 46 Cruise Terminal Development Determination of Significance Maritime
2019-03 Terminal 46 Cruise Terminal Development Scoping Summary Report Maritime
2019-04 SEA - Flight Corridor Safety Program 2019: Final Determination of Non-Significance Sea-Tac Airport
2019-04 SEA – Flight Corridor Safety Program 2019: Environmental Checklist Sea-Tac Airport
2020-01 Sea-Tac Airport – Air Cargo Road Safety Improvements: Environmental Checklist Sea-Tac Airport
2020-01 Sea-Tac Airport – Air Cargo Road Safety Improvements: Final Determination of Non-Significance Sea-Tac Airport
2020-02 Sea-Tac Airport – C-1 Building Expansion Environmental Checklist Sea-Tac Airport
2020-02 Sea-Tac Airport – C-1 Building Expansion: Final Determination of Non-Significance Sea-Tac Airport
2020-03 Terminal 86 Elliott Bay Acclimation Net Pen Improvement Project Checklist Maritime
2020-03 Terminal 86 Elliott Bay Acclimation Net Pen Improvement Project Determination of Non-Significance (DNS) Maritime
Flight Corridor Safety Program Phase 1 Addendum Sea-Tac Airport
Terminal 5 Final EIS Volume I 2016 Maritime
Terminal 5 Final EIS Volume II 2016 Maritime
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