The construction of dams at the Lake of the Woods outlets in present-day Kenora in the late 19th century led to concerns over high and low water levels on the lake early in the 20th century. The federal governments of Canada and the United States referred the matter to the International Joint Commission (IJC) in 1912. In 1917 the IJC recommended the creation of control boards and the operating conditions they would apply to lake level management. The first of these boards, the Lake of the Woods Control Board (LWCB), was established by Canadian Order-in-Council in 1919. Two additional acts provided statutory establishment of the LWCB, defined its jurisdiction and powers, and provided for board members appointed by Canada and Ontario: the Lake of the Woods Control Board Act, Canada, 1921, the Lake of the Woods Control Board Act, Ontario, 1922. In 1922 the Canada-Ontario-Manitoba Tripartite Agreement was signed by the respective governments. Initially, only Canada and Ontario appointed members to the board as, at that time, natural resources in Manitoba were administered by Canada. In 1958, having gained control over its natural resources, Manitoba passed its own Lake of the Woods Control Board Act. That same year, Canada and Ontario amended their original versions of the acts. As a result of these legislative changes, the LWCB now has one member appointed by Canada, two appointed by Ontario, and one appointed by Manitoba.