In all cases of claims, prior to April 1, 1976, by employees, arising under the collective bargaining agreements of the railroads in reorganization in the Region, and subject to section
of this title, the Corporation, the National Railroad Passenger Corporation, or an acquiring carrier, as the case may be, shall assume responsibility for the processing of any such claims, and payment of those which are sustained or settled on or subsequent to the date of conveyance, under section
of this title, and shall be entitled to direct reimbursement from the Association pursuant to section
of this title, to the extent that such claims are determined by the Association to be the obligation of a railroad in reorganization in the Region. Any liability of an estate of a railroad in reorganization to its employees which is assumed, processed, and paid pursuant to this subsection by the Corporation, the National Railroad Passenger Corporation, or an acquiring carrier shall remain the preconveyance obligation of the estate of such railroad for purposes of section
of this title. The Corporation, the National Railroad Passenger Corporation, an acquiring carrier, or the Association, as the case may be, shall be entitled to a direct claim as a current expense of administration, in accordance with the provisions of section
of this title (other than paragraph (4)(A) thereof), for reimbursement (including costs and expenses of processing such claims) from the estate of the railroad in reorganization on whose behalf such obligations are discharged or paid. In those cases in which claims for employees were sustained or settled prior to such date of conveyance, it shall be the obligation of the employees to seek satisfaction against the estate of the railroads in reorganization which were their former employers.