[Request for Advance Decision on Claim for Waiver of Erroneous Overpayment]

An official of the Department of the Treasury requested an advance decision concerning whether the overpayment of an employee through erroneously credited annual leave could be waived or, alternatively, the proper means for recoupment of the erroneously credited leave in this instance. GAO held that, since the employee's leave records for the time period in question are no longer available, it could not be demonstrated that he used leave in excess of that to which he was entitled, and there was no basis to recoup or waive the alleged excess.