Answer:
The Bureau is remarkably closed-mouthed about this process. There is nothing in Regulation Z to indicate whom to contact at the Bureau, and there's nothing on the Bureau's website with contact information, either. I suggest using the information available on the Bureau's "Contact Us" page or to start with a phone call or email. I have found the staff on the Bureau's switchboard helpful in getting calls routed to the right folks on the one or two times I have had occasion to call them.
First published on BankersOnline.com 1/28/13