24 CFR § 206.209 - Prepayment.
§ 206.209 Prepayment.
(a) No charge or penalty. The borrower may repay a mortgage in full or prepay a mortgage in part without charge or penalty at any time, regardless of any limitations on repayment or prepayment stated in a mortgage.
(b) Insurance and condemnation proceeds. If insurance or condemnation proceeds are paid to the mortgagee, the principal limit and the outstanding loan balance shall be reduced by the amount of the proceeds not applied to restoration or repair of the damaged property.
(c) Funds received from a partial prepayment shall be applied in accordance with the Note.