Section 51.1 - Purpose and scope(a)Purpose. This part sets out procedures for receiverships of national banks conducted by the Office of the Comptroller of the Currency (OCC) under the receivership provisions of the National Bank Act (NBA). These receivership provisions apply to national banks that are not insured by the Federal Deposit Insurance Corporation (FDIC).(b)Scope. This part applies to the appointment of a receiver for uninsured national banks (uninsured banks) and the operation of a receivership after appointment of a receiver for an uninsured bank under 12 U.S.C. 191 .