%0 Generic %T National Park Service concessions program hearing before the Subcommittee on National Parks of the Committee on Energy and Natural Resources, United States Senate, One Hundred Eighth Congress, second session, to review the National Park Service concessions program, including implementation of the National Park Service Concessions Management Improvement Act of 1998, April 8, 2004. %U https://ezaccess.libraries.psu.edu/login?url=http://congressional.proquest.com/congcomp/getdoc?HEARING-ID=HRG-2003-CSC-0004