43 CFR 2.4 - How do I obtain information routinely available to the public?
(b) If you seek records from an entire bureau, submit your request to the bureau FOIA Officer. The bureau FOIA Officer will forward it to the bureau component(s) that he or she believes has or are likely to have responsive records.
(d) If a request to a bureau states that it seeks records from other unspecified components within the same bureau, the appropriate FOIA contact will send the request to the Bureau FOIA Officer. He or she will forward it to the components that the bureau FOIA Officer believes have or are likely to have responsive records.
(f) If a request to a bureau states that it seeks records from other unspecified bureaus, the bureau's FOIA Officer may forward the request to those bureaus which he or she believes have or are likely to have responsive records. If the bureau FOIA Officer forwards the request, they will notify you in writing and provide the name of a contact in the other bureau(s). If it does not forward the request, the bureau will return it to you, advise you to submit the request directly to the other bureaus, notify you that it cannot comply with the request, and close the request.