106 STAT. 2844 PUBLIC LAW 102-486—OCT. 24, 1992 standards, energy accounting and analysis, life-cycle cost methodology, fuel supply and pricing, and instrumentation for energy surveys and audits; (4) the term 'Task Force" means the Interagency Energy Management Task Force established under section 547 of the National Energy Conservation Policy Act (42 U.S.C. 8257); and (5) the term "energy conservation measures" has the meaning given such term in section 551(4) of the National Energy Conservation Policy Act. SEC. 152. FEDERAL ENERGY MANAGEMENT AMENDMENTS. (a) PURPOSE.— Section 542 of the National Energy Conservation Policy Act (42 U.S.C. 8252) is amended by inserting after "use of energy" the following: "and water, and the use of renewable energy sources,". (b) REQUIREMENTS FOR FEDERAL AGENCIES. —Section 543 of such Act (42 U.S.C. 8253(a)) is amended— (1) in the section heading by striking "(jrOALS" and inserting "REQUIREMENTS"; (2) in subsection (a) by striking "GOAL" and inserting "REQUIREMENT"; (3) in subsection (a)(D, by striking the period at the end and inserting the following: "and so that the energy consumption per gross square foot of its Federal buildings in use during the fiscal year 2000 is at least 20 percent less than the energy consumption per gross square foot of its Federal buildings in use duringfiscalyear 1985."; and (4) by redesignating subsection (b) as subsection (d) and inserting after subsection (a) the following: "(b) ENERGY MANAGEMENT REQUIREMENT FOR FEDERAL AGEN- ClES.- ^l) Not later than January 1, 2005, each agency shall, to the maximum extent practicable, install in Federal buildings owned by the United States all energy and water conservation measures with payback periods of less than 10 years, as determined by using the methods and procedures developed pursuant to section 544. "(2) The Secretary may waive the requirements of this subsection for any agency for such periods as the Secretary may determine if the Secretary finds that the agency is taking all practicable steps to meet the requirements and that the requirements of this subsection will pose an unacceptable burden upon the agency. If the Secretary waives the requirements of this subsection, the Secretary shall notify the Congress promptly in writing with an explanation and a justification of the reasons for such waiver. "(3) This subsection shall not apply to an agency's facilities that generate or transmit electric energy or to the uranium enrichment facilities operated by the Department of Energy. "(4) An agency may participate in the Environmental Protection Agency's 'Green Lights' program for purposes of receiving technical assistance in complying with the requirements of this section. "(c) EXCLUSIONS. —<1) An agency may exclude, from the energy consumption requirements for uie year 2000 established under sim^ section (a) and the requirements of subsection (b)(D, any Federal building or collection of Federal buildings, and the associated energy consumption and gross square footage, if the head of such agency finds that compliance with such requirements would be impractical. A finding of impracticability shall be based on the energy intensive-
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