The Milwaukee Railroad and labor organizations representing the employees of such railroad may, not later than 20 days after November 4, 1979, enter into an agreement providing protection for employees of such railroad who are adversely affected as a result of a reduction in service by such railroad or a restructuring transaction carried out by such railroad. Such employee protection may include, but need not be limited to, interim employee assistance, moving expenses, employee relocation incentive compensation, and separation allowances.