Nebraska's Commission on Intergovernmental Cooperation represents the state in the Council of State Governments. As an oil-producing state, Nebraska is a member of the Interstate Compact to Conserve Oil and Gas. In addition, the state belongs to several regional commissions. Of particular importance are the Republican River Compact with Colorado and Kansas, the Big Blue River Compact with Kansas, the South Platte River Compact with Colorado, the Ponca Creek Nebraska-South Dakota-Wyoming Water Compact, and the Upper Niobrara River Compact with Wyoming. The Nebraska Boundary Commission was authorized in 1982 to enter into negotiations to more precisely demarcate Nebraska's boundaries with Iowa, South Dakota, and Missouri. Nebraska is also a member of the Central Interstate Low-Level Radioactive Waste Compact, under which Nebraska, Kansas, Oklahoma, Louisiana, and Arkansas have located a suitable disposal site for such waste. Boundary pacts are in effect with Iowa, Missouri, and South Dakota. In 2001, the state received over $2 billion in federal grants.