41 C.F.R. § 302-3.202
Re-employment after a separation by reduction in force or transfer of functions
If an employee is re-employed after a separation by reduction in force or transfer of function, their agency may pay them a relocation allowance under the conditions of this chapter if:
(a) The employee is re-employed within one year of their involuntary separation date;
(b) The new appointment is not temporary; and
(c) The new appointment is at a different duty station from where their separation occurred and meets the distance criteria in § 302-2.1 of this chapter for a short distance relocation.