2 U.S. Code § 1817a - Disposition of surplus or obsolete personal property
(a) In general
The Architect of the Capitol shall have the authority, within the limits of available appropriations, to dispose of surplus or obsolete personal property by inter-agency transfer, donation, sale, trade-in, or discarding. Amounts received for the sale or trade-in of personal property shall be credited to funds available for the operations of the Architect of the Capitol and be available for the costs of acquiring the same or similar property. Such funds shall be available for such purposes during the fiscal year received and the following fiscal year.