How the United States uses reservoir space in Canada changes on September 16, 2024, from the high degree of structure and control of flows coming across the border from Canada experienced over the last 60 years under the Columbia River Treaty, to an operation that increases the uncertainty of those flows. The U.S. Army Corps of Engineers (USACE) and Bureau of Reclamation (Reclamation) will hold four virtual public information sessions in September and October to begin informing the public about the potential changes.