. . . . . . . . . . "Barriers to installing energy-efficient lighting in federal buildings : statement of L. Nye Stevens, Director, Government Business Operations Issues, before the Subcommittee on Environment, Energy and Natural Resources, Committee on Government Operations, and the Subcommittee on Energy and Power, Committee on Energy and Commerce, House of Representatives"@en . . "Barriers to installing energy-efficient lighting in federal buildings statement of L. Nye Stevens, Director, Government Business Operations Issues, before the Subcommittee on Environment, Energy and Natural Resources, Committee on Government Operations, and the Subcommittee on Energy and Power, Committee on Energy and Commerce, House of Representatives"@en . . . . . . . . .