34 C.F.R. § 81.40
If the OALJ accepts jurisdiction of a case under § 81.38, the recipient shall present its case first and shall have the burden of proving that the recipient is not required to return the amount of funds that the disallowance decision requires to be returned because—
(e) The amount required to be returned includes an amount expended in a manner not authorized by law more than five years before the recipient received the notice of the disallowance decision.
(Authority: 20 U.S.C. 1221e-3, 1234(f)(1), 1234a(b)(3), 1234b(b)(1), and 3474(a))
[54 FR 19512, May 5, 1989. Redesignated and amended at 58 FR 43473, Aug. 16, 1993]