; (B) merged with amounts in the fund or account to which the amounts were credited under subparagraph (A); and (C) available for the same purposes as, and subject to the same conditions and limitations applicable to, amounts in the fund or account to which the amounts were credited under subparagraph (A). (e) Description of Federal land and non-Federal land The exact acreage and legal description of the Federal land and non-Federal land to be exchanged under this section shall be determined by surveys that are determined to be satisfactory by the Secretary and the Post. (f) Conveyance agreement The exchange of Federal land and non-Federal land under this section shall be— (1) carried out through a quitclaim deed or other legal instrument