From the Document: "The International Joint Commission (IJC) was established under the 1909 Boundary Waters Treaty between the United States and Canada. The treaty directs the IJC to aid in the resolution and prevention of disputes concerning the waters that cross (transboundary) or form (boundary) the international border between the two countries, known collectively as 'boundary waters'. The watersheds of these boundary waters are illustrated in Figure 1. The IJC may be asked to consider issues related to drinking water, commercial shipping, hydroelectric power generation, agriculture, industry, recreational boating, and shoreline property, among others. Congressional interest in the IJC often has focused on the IJC's scope of authority, its role in specific disputes, and funding for the U.S. portion of IJC activities."
CRS In Focus, IF10761
Congressional Research Service: https://crsreports.congress.gov/