Concessions reform : hearing before the Subcommittee on National Parks, Forests, and Public Lands of the Committee on Natural Resources, House of Representatives, One Hundred Third Congress, first session, on H.R. 743, to amend the National Park Service Concessions Policy Act to foster competition among concessioners, to improve management of concessions consistent with the preservation of resources and the purposes of the National Park system, and for other purposes; H.R. 1493, to reform the concessions policies of the National Park Service, and for other purposes; H.R. 2146, to reform the concessions policies of the National Park Service, and for other purposes : hearing held in Washington, DC, October 19, 1993.