(A) Within 20 days after February 5, 1976, the Association may, by notice to the Congress and by publication in the Federal Register, modify, supplement, or add to the designations of rail properties in the final system plan if the Association finds such actions are necessary to
(i) achieve the efficient implementation of the final system plan, or
(ii) provide for the offer to profitable railroads of rail properties designated in the final system plan to the Corporation, if such properties are not essential in the operation of other rail properties of the Corporation but are or would be integrally related to the operation of rail properties of (or which are offered pursuant to the final system plan to) such profitable railroad, or
(iii) provide for the designation of additional rail properties to the Corporation or to a subsidiary thereof to enable the Corporation to serve efficiently a line of railroad designated to the Corporation in the final system plan if such line does not connect with any other line of railroad so designated to the Corporation or if such line would be served more efficiently as a consequence of such designation.
Any designation to a profitable railroad pursuant to this paragraph shall comply with the second sentence of section 716 (d)(4) of this title, and shall only be made upon a finding by the Association that such designation is integrally related to an offer of rail properties to a profitable railroad in the final system plan, that the goals of the final system plan require that the rail properties be operated as a part of the rail properties included in such offer, and that the implementation of such designation will not materially and adversely affect the impact of such offer on the profitability of the Corporation or any profitable railroad operating in the region. Any designation to a profitable railroad pursuant to this subsection, which amends any prior offer, shall terminate 30 days after February 5, 1976, unless, prior to such date, such profitable railroad has notified the Association in writing of its acceptance of such amendment to the prior offer.
(D) Any labor agreements entered into under section
7781 of this title shall be subject to further negotiations for any modifications which may be necessary to implement designations made pursuant to this paragraph.