The Office of the Comptroller of the Currency (OCC) was established in 1863 and tasked with the mission "to charter, regulate, and supervise all national banks and federal savings associations." (OCC Website). The OCC is an independent bureau under the Department of the Treasury and does not receive appropriation funding from Congress. The bureau is sustained through assessment fees paid by banks and federal savings associations as well as investment income. See the OCC website for access to publications from the bureau. For further information on the history of the bureau, see this OCC publication.
Many federal agencies have strict network security measures that preclude libraries from providing public access to catalogs, web resources, etc. The library of the OCC does not have a web presence, and portions of the collection are not open to the public for security reasons. The space is open to research visits upon request. The library is a selective depository with the Federal Depository Library Program, and as such, must make those portions of the collection accessible to the public. Click here for OCC library contact information. The OCC collection focuses finance, banking, and has several stacks of statutes and regulations at the state and federal level. A unique part of the collection are the bound legislative histories created by librarians on staff.
The library is located on the 9th floor of the OCC offices. The view from the windows is impressive. The OCC is moving offices in a few weeks and the view will be significantly different, but library staff and extensive collections will continue to serve OCC patrons from their new home. Here are some shots of the current view, and a model of the Treasury building in downtown DC (A gift to the Treasury Department that founds its way to the OCC library.