• Picture of sunset over Lake Okanagan with view of a dock

    Boundary Waters Treaty

    The 1909 Boundary Waters Treaty  provides principles for Canada and the United States to follow in using the waters they share. 

  • Over One Hundred Years of Protecting Shared Waters

    The International Joint Commission prevents and resolves disputes between the United States of America and Canada under the 1909 Boundary Waters Treaty.


International Watersheds Initiative


Transboundary Waters

Transboundary Watersheds

Select a watershed (basin) within the map below to learn more about the IJC’s water-related activities.


There's still time to contribute your voice to the conversation! Why is it important to speak out for the Great Lakes? Learn more by watching this brief video.

Throughout June - October, the IJC visited several Great Lakes communities to hold public meetings, roundtables and educational events to hear everyone's perspective about the lakes' health now and in the future. These meetings are part of its consultation throughout the Great Lakes region to assess both countries’ progress to accomplish the goals they agreed to in the 2012 Great Lakes Water Quality Agreement. Your input will help to ensure that the IJC provides an effective evaluation of progress to restore our precious Great Lakes, as well as advice for further progress. We include our thoughts and key issues raised by everyone in our Triennial Assessment of Progress Report, which will be released in spring 2020.

To review the governments’ latest progress report for their work under the Agreement, please visit https://binational.net/2019/06/13/2019-prp-rep/.

We want to hear from you. Click on the link below to complete a brief questionnaire about Great Lakes water quality, anytime before November 30.We look forward to hearing your views!