((a)) ** .—** Except as provided in subsection (b), the Administrator of General Services shall have charge of—

((1)) all land and other property which has been or may be assigned, set off, or conveyed to the Federal Government in payment of debts;

((2)) all trusts created for the use of the Government in payment of debts due the Government; and

((3)) the sale and disposal of land—

((A)) assigned or set off to the Government in payment of debt; or

((B)) vested in the Government by mortgage or other security for the payment of debts.

((b)) ** .—** This section does not apply to—

((1)) real estate which has been or shall be assigned, set off, or conveyed to the Government in payment of debts arising under the Internal Revenue Code of 1986 ( et seq.); or

((2)) trusts created for the use of the Government in payment of debts arising under the Code and due the Government.