(a) Authority.— At the request of a federal agency, a mixed-ownership Government corporation (as defined in chapter
91 of title
31), or the District of Columbia, the Administrator of General Services may
(1) acquire land for a building or project authorized by Congress;
(2) make or cause to be made (under contract or otherwise) surveys and test borings and prepare plans and specifications for a building or project prior to the Attorney Generals approval of the title to the site; and
(3) contract for, and supervise, the construction, development, and equipping of a building or project.