12 C.F.R. § 34.85 – Appraisal requirements.

(a) General.
1. (1) Upon transfer to OREO, a national bank shall substantiate the parcel's market value by obtaining either:
  1. (i) An appraisal in accordance with subpart C of this part; or
  2. (ii) An appropriate evaluation when the recorded investment amount is equal to or less than the threshold amount in subpart C of this part.
2. (2) A national bank shall develop a prudent real estate collateral evaluation policy that allows the bank to monitor the value of each parcel of OREO in a manner consistent with prudent banking practice.
(b) Exception. If a national bank has a valid appraisal or an appropriate evaluation obtained in connection with a real estate loan and in accordance with subpart C of this part, then the bank need not obtain another appraisal or evaluation when it acquires ownership of the property.
(c) Sales of OREO. A national bank need not obtain a new appraisal or evaluation when selling OREO if the sale is consummated based on a valid appraisal or an appropriate evaluation.