42 USC 13723 - Congressional approval of any expansion at Lorton and congressional hearings on future needs

(a) Congressional approval 
Notwithstanding any other provision of law, the existing prison facilities and complex at the District of Columbia Corrections Facility at Lorton, Virginia, shall not be expanded unless such expansion has been approved by the Congress under the authority provided to Congress in section 446 of the District of Columbia Home Rule Act.
(b) Senate hearings 
The Senate directs the Subcommittee on the District of Columbia of the Committee on Appropriations of the Senate to conduct hearings regarding expansion of the prison complex in Lorton, Virginia, prior to any approval granted pursuant to subsection (a) of this section. The subcommittee shall permit interested parties, including appropriate officials from the County of Fairfax, Virginia, to testify at such hearings.
(c) “Expanded” and “expansion” defined 
For purposes of this section, the terms expanded and expansion mean any alteration of the physical structure of the prison complex that is made to increase the number of inmates incarcerated at the prison.