Who We Are

  The St. Croix International Waterway Commission is a registered non-profit organization (US Registration #01-0451745 and Canadian Registration #13323-9161-RR-0001) in both Canada and the United States.


  The commission is guided by its appointed Commissioners, two Federal Observers, and two Government Liaisons, with day to day operations conducted by the Executive Director, with seasonal staff hired to perform duties associated with the environmental science field work and recreational program. 

  The SCIWC was established through a Memorandum of Understanding (1986) and Legislative Acts (1987) by the State of Maine and the Province of New Brunswick. The memorandum of Understanding which extends the full length of the St. Croix boundary waters, from their origin at the source in Monument Brook in Aroostook and York Counties to their confluence (185 km/110 mi distant) with the Passamaquoddy Bay in Washington and Charlotte Counties. Also encompassing 250 ft/ 75 m corridor of adjacent shore lands in both Maine and New Brunswick. 

Our Mission

Our Vision

  The St. Croix International Waterway Commission is an international partnership that protects, enhances the health, heritage and beauty of a Shared Waterway. 

  We envision a vibrant organization that protects, restores and manages natural habitats; offers exceptional backcountry experiences; and celebrates our shared, cross-boundary cultural heritage.