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Cooperation with Canada and Health of the Salish Sea

Learn how EPA works with U.S. and Canadian partners to advance transboundary coordination and information-sharing to protect our shared ecosystem.​

On this page:
  • U.S.-Canada Cooperation and Salish Sea Action Plan
  • Health of the Salish Sea
  • International Airshed Strategy

U.S.-Canada Cooperation and Salish Sea Action Plan

In 2000, EPA and Environment and Climate Change Canada signed a Joint Statement of Cooperation on the Georgia Basin and Puget Sound Ecosystem (pdf) that outlines a shared vision for the health of the transboundary ecosystem and commits to cooperation between the two agencies. This agreement calls for the two agencies to develop and periodically update the Salish Sea Action Plan to achieve the goals outlined in the Statement of Cooperation.

EPA and Environment and Climate Change Canada co-chair a working group that develops and updates the Salish Sea Action Plan. The working group includes advisory members from organizations that – while not parties to the Statement of Cooperation – can help effectively implement its goals.

Current advisory members represent the following organizations:

  • Coast Salish Gathering Steering Committee
  • British Columbia Ministry of Water, Land and Resource Stewardship
  • British Columbia Ministry of Environment and Parks
  • Washington State Department of Ecology
  • Puget Sound Partnership
  • Northwest Straits Commission
  • Salish Sea Institute at Western Washington University

Current Action Plan

Text overlay with background aerial photo of forested islands on a sunny day.

2025-2028 Salish Sea Action Plan (pdf) (481.37 KB)

Past Action Plans

  • 2021-2024 Salish Sea Action Plan (pdf) (3.26 MB)
  • 2017-2020 Salish Sea Action Plan (pdf) (1.46 MB)
  • 2015-2016 Salish Sea Action Plan (pdf) (1.92 MB)
  • 2011-2013 Salish Sea Action Plan (pdf) (590.49 KB)
  • 2008-2010 Georgia Basin-Puget Sound Action Plan (pdf) (154.21 KB)
  • 2004 Georgia Basin-Puget Sound Action Plan (pdf) (76.79 KB)
  • 2003 Georgia Basin-Puget Sound Action Plan (pdf) (81.79 KB)

Health of the Salish Sea

The Health of the Salish Sea Ecosystem Report is a collaboration between EPA and Environment Climate Change Canada under the Salish Sea Action Plan to report to the public on the health of our shared ecosystem.

The report is unique in its focus on the entire Salish Sea ecosystem with an emphasis on collaboration across the U.S.-Canada international border. The report tracks trends for a range of environmental indicators, such as freshwater quality and Chinook salmon.


International Airshed Strategy

The U.S.- Canada Statement of Intent on a Georgia Basin-Puget Sound International Airshed Strategy (pdf) reflects EPA and Environment and Climate Change Canada’s intent to work collaboratively to address air quality issues in the Georgia Basin-Puget Sound region.

Puget Sound

  • Puget Sound Program Office
  • Funding for Puget Sound
  • Federal Leadership Task Force
  • Cooperation with Canada
  • About Puget Sound
Contact Us About Puget Sound
Contact Us About Puget Sound to ask a question, provide feedback, or report a problem.
Last updated on September 25, 2026
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