22 CFR §512.25
- (a)Refunds shall be promptly made when:
- (1)A debt is waived or otherwise found not to be owed to the United States; or
- (2)The employee's paying agency is directed by an administrative or judicial order to refund amounts deducted from his or her current pay.
- (b)Refunds do not bear interest unless required or permitted by law or contract.