Canada-US Niagara River treaty
Official title: Treaty between Canada and the United States of America Concerning the Diversion of the Niagara River
- Subject category:
- Type of agreement / instrument:
- Canada - United States
- Legally-binding treaty
- Signed February 27, 1950
- Entry into force October 10th 1950
- Lead & partner departments:
- Global Affairs Canada, Environment and Climate Change Canada
- For further information:
- Compendium edition:
- February 2017
- Reference #:
The agreement specifies the minimum amount of water that must flow over Niagara Falls for scenic purposes, and provides for the equal division of waters made available for power purposes.
The International Niagara Committee was set up by the governments of Canada and the United States by an exchange of notes during January 1955, in accordance with provisions of Article VII of the Niagara Treaty of 1950 between the two countries.
The committee reports to Global Affairs Canada and the State Department in the United States.
The committee usually meets twice a year, with the meetings attended by representatives of the U.S. Army Corps of Engineers, Ontario Power Generation, the New York Power Authority, the St. Lawrence Seaway Management Corporation, the U.S. Federal Energy Regulatory Commission, and the Ontario Ministry of Natural Resources.
The preservation and enhancement of the scenic beauty of Niagara Falls and the Niagara River, while providing for the most beneficial use of the river waters.
Environment and Climate Change Canada provides the Canadian member of the International Niagara Committee, appointed through an order in council.
Environment and Climate Change Canada also provides secretarial, technical and engineering support to the Canadian member in the form of an on-site representative, hydrometric support to quantify flows over Niagara Falls and in the Welland Canal, and the conduct of weekly inspections to verify determination, recording, and reporting of water use and allocation under the terms of the treaty.
Results / progress
The primary functions of the committee are as follows:
- to ascertain, determine, and record the amounts of water available for the purpose of the treaty;
- to record the amounts of water taken from the Niagara River and Welland Ship Canal for hydro-electric power generation by both countries;
- to ensure that the amount of water flowing over Niagara Falls meets the requirements specified in the treaty;
- to investigate, explain, and report on the causes of any treaty violations;
- to inspect the power plants to ensure accurate determination of water diversions.
A report is submitted to the Canadian and United States governments annually. It is available to the public upon request.
Report a problem or mistake on this page
- Date modified: