; and (B) the impact of the program on the length of time of lease procurements; (2) conduct a review of whether the application of section 863 of Public Law 110–417 to acquisitions for commercial leasing services resulted in rental cost savings for the Government during the years in which such section was applicable prior to the date of enactment of this section; and (3) not later than September 30, 2020, and September 30, 2022, submit to the Committee on Transportation and Infrastructure of the House of Representatives and the Committee on Environment and Public Works of the Senate a report that— (A) summarizes the results of the audit and review required by paragraphs (1) and (2); (B) includes an assessment of whether the National Broker Contract provides greater efficiencies and savings than the use of General Services Administration staff; and (C) includes recommendations for improving General Services Administration lease procurements. (c) Termination This section shall terminate on December 31, 2023. 9. Department of Energy headquarters replacement (a) Sale of certain property (1) In general Not later than 2 years after the date of enactment of this Act, the Administrator of General Services is directed to sell, exchange, or some combination thereof, a portion of the Forrestal Complex necessary to generate the funds necessary to construct a new Department of Energy headquarters on Government-owned land in a manner consistent with the SW Ecodistrict Plan if the Administrator determines that the new Department of Energy headquarters can be constructed with no net costs to the Government. (2) Definitions For purposes of this section, the following definitions apply: (A) Department of Energy Forrestal Complex The term Forrestal Complex means the land, including the buildings and other improvements thereon, that— (i) subject to survey and as determined by the Administrator, is— (I) located in the District of Columbia