The OTS and OCC have not yet issued any guidance about when any changes must be made to notices/signs etc. The Q&A on CRA had stated the following in 2010.
"APPENDIX B to Part ll—CRA Notice
APPENDIX B to Part ll—1: What agency information should be added to the CRA notice form?
A1. The following information should be added to the form:
OCC-supervised institutions only: For community banks, the address of the deputy comptroller of the district in which the institution is located should be inserted in the appropriate blank. These addresses can be found at
http://www.occ.gov. For banks supervised under the large bank program, insert ‘‘Large Bank Supervision, 250 E Street, SW., Washington, DC 20219–0001.’’ For banks supervised under the mid-size/credit card bank program, insert ‘‘Mid-Size and Credit Card Bank Supervision, 250 E Street, SW., Washington, DC 20219–0001.’’
OCC-, FDIC-, and Board-supervised institutions: ‘‘Officer in Charge of Supervision’’ is the title of the responsible official at the appropriate Federal Reserve Bank."
The OCC has a map of their districts on the following page.
http://www.occ.gov/about/who-we-are/district-and-field-offices/index-organization.html