北西ハワイ諸島
Case also introduced the Northwestern Hawaiian Islands National Marine Refuge Act (H.R. 2376), which would have protected the Northwestern Hawaiian Islands by making them a national marine refuge. In June 2006, President George W. Bush achieved much of the bill's goals by issuing a public proclamation creating the Papahanaumokuakea Marine National Monument under the authority of the Antiquities Act of 1906.