National park concessions measures : hearing before the Subcommittee on National Parks and Public Lands of the Committee on Interior and Insular Affairs, House of Representatives, One Hundred Second Congress, first session on H.R. 542, to prohibit foreign interests from owning concessions in units of the National Park System; H.R. 294, to restrict concessionaire contracts for accommodations, facilities, and services in areas administered by the National Park Services, and for other purposes; H.R. 571, to repeal the concessioner preferences of the National Park Service Concessions Policy Act, to require that concessions be awarded pursuant to a competitive bidding process, and for other purposes; H.R. 943, 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. Con. Res. 14, expressing the sense of the Congress regarding the awarding of contracts in units of the National Park System; H. Con. Res. 20, expressing the sense of the Congress regarding the awarding of concessions of units of the National Park System : hearing held in Washington, DC, June 11, 1991.