41 CFR § 102-118.160
Who is liable if my agency makes an overpayment on a transportation bill?
June 9, 2020
If the agency conducts prepayment audits of its transportation bills, agency transportation certifying and disbursing officers are liable for any overpayments made. If GSA has granted a waiver to the prepayment audit requirement and the agency performs a postpayment audit (31 U.S.C. 3528 and 31 U.S.C. 3322) neither the certifying nor disbursing officers are liable for the reasons listed in these two cited statutes.