Pub. L. 93-236, tit. V, sec. 503
assignment of work
assignment of work Sec. 503. The Corporation shall have the right to assign, allocate, reassign, reallocate, and consolidate work formerly performed on the rail properties acquired pursuant to the provisions of this Act from a railroad in reorganization to any location, facility, or position on its system provided it does not remove said work from coverage of a collective-bargaining agreement and does not infringe upon the existing classification of work rights of any craft or class of employees at the location or facility to which said work is assigned, allocated, reassigned, reallocated, or consolidated and shall have the right to transfer to an acquiring railroad the work incident to the rail properties or Facilities acquired by said acquiring railroad pursuant to this Act, subject, however, to the provisions of section 508 of this title.