34 C.F.R. § 690.75
(a) For each payment period, an institution may pay a Federal Pell Grant to an eligible student only after it determines that the student—
(c) If an institution determines at the beginning of a payment period that a student is not maintaining satisfactory progress, but reverses that determination after the end of the payment period, the institution may neither pay the student a Federal Pell Grant for that payment period nor make adjustments in subsequent Federal Pell Grant payments to compensate for the loss of aid for that period.
(Approved by the Office of Management and Budget under control number 1845-0681)
(Authority: 20 U.S.C. 1070a)
[52 FR 45736, Dec. 1, 1987, as amended at 56 FR 56916, Nov. 6, 1991; 59 FR 54730, 54735, Nov. 1, 1994; 60 FR 30789, June 12, 1995; 61 FR 60397, Nov. 27, 1996; 61 FR 60610, Nov. 29, 1996; 65 FR 65676, Nov. 1, 2000; 67 FR 67083, Nov. 1, 2002; 85 FR 49828, Aug. 14, 2020]