12 C.F.R. § 339.8
Determination fees
(a) General. Notwithstanding any Federal or State law other than the Flood Disaster Protection Act of 1973, as amended (42 U.S.C. 4001-4129), any FDIC-supervised institution, or a servicer acting on its behalf, may charge a reasonable fee for determining whether the building or mobile home securing the loan is located or will be located in a special flood hazard area. A determination fee may also include, but is not limited to, a fee for life-of-loan monitoring.
(b) Borrower fee. The determination fee authorized by paragraph (a) of this section may be charged to the borrower if the determination:
(1) Is made in connection with a making, increasing, extending, or renewing of the loan that is initiated by the borrower;
(2) Reflects the Administrator of FEMA's revision or updating of floodplain areas or flood-risk zones;
(3) Reflects the Administrator of FEMA's publication of a notice or compendium that:
(i) Affects the area in which the building or mobile home securing the loan is located; or
(ii) By determination of the Administrator of FEMA, may reasonably require a determination whether the building or mobile home securing the loan is located in a special flood hazard area; or
(4) Results in the purchase of flood insurance coverage by the lender or its servicer on behalf of the borrower under § 339.7.
(c) Purchaser or transferee fee. The determination fee authorized by paragraph (a) of this section may be charged to the purchaser or transferee of a loan in the case of the sale or transfer of the loan.