34 C.F.R. § 674.62
(a) No portion of a loan may be cancelled for teaching. Head Start, volunteer or military service if the borrower's service is performed—
(b) The institution shall not refund a repayment made during a period for which the borrower qualified for a cancellation unless the borrower made the payment due to an institutional error.
(Authority: 20 U.S.C. 425 and 1067ee)
[52 FR 45758, Dec. 1, 1987. Redesignated at 59 FR 61413, Nov. 30, 1994]