As the court wrote:  "EnergySolutions is the owner and operator of a facility for the disposal of low-level radioactive waste located in Clive, Utah. Utah is a member state of the Northwest Compact, and required EnergySolutions to obtain permission pursuant to the Compact for the importation and disposal of low-level waste from a decommissioned reactor in Italy. The member states, including Utah, voted to deny this approval, based on exclusionary authority it claimed through the federal statute approving the terms of the Compact."