Talks are scheduled to begin this week in Washington, D.C., to modernize the document that coordinates flood control and hydropower generation in the United States and Canada along the 1,200-mile (1,930-kilometer) Columbia River.

Northwest politicians have been pushing for years to renegotiate the Columbia River Treaty between the two countries. The lawmakers are particularly keen to eliminate a so-called “Canadian Entitlement” they contend is too favorable to Canada.