5 C.F.R. § 845.101

(a) This part regulates—

(1) The recovery of overpayments of FERS basic benefits;

(2) The standards for waiver of recovery of overpayments of FERS basic benefits; and

(3) The use of FERS basic benefits to recover debts due the United States.

(b) This subpart states the rules of general applicability to this part.