• 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.

Boards

International Watersheds Initiative

Reports

Transboundary Waters

Transboundary Watersheds

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

STEP IN AND SPEAK OUT FOR THE GREAT LAKES IN 2019

This year provides important opportunities for every Great Lakes resident to learn more about the issues affecting the Great Lakes, express why you care about them, share what actions you are taking -- large and small -- to restore and protect them, and your concerns for the health of the Great Lakes ecosystem.

The opportunities start in June, when Canada and the United States will hold a Great Lakes Public Forum to discuss the state of the lakes and progress made under the Great Lakes Water Quality Agreement. The event is free and everyone is welcome to attend. The forum will be held in Milwaukee, Wisconsin at the Hilton City Center Hotel on June 17-19, 2019, where the IJC also will hold two public meetings.

Throughout June - October, the IJC will hold several additional public meetings around the Great Lakes to hear everyone's perspective about the lakes' health now and in the future. 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.

Click on the link below to learn about events in June, and come back in early June for a complete list of meetings in the summer and fall. We look forward to your participation!