The transferee agency must pay an amount equal to the property's fair market value (determined by the Administrator)--
(a) Where the transferor agency has requested the net proceeds of the transfer pursuant to 40 U.S.C. 574; or
(b) Where either the transferor or transferee agency (or organizational unit affected) is subject to the Government Corporation Control Act (31 U.S.C. 841), is a mixed-ownership Government corporation, or the municipal government of the District of Columbia.