Answer:
Unless your bank's CIP requirements include obtaining the SSN of non-owner authorized signers, you are not required to do so. Many banks have determined that they wish to obtain and verify the identity (including SSN) of authorized signers, particularly for an entity for which adequate verification of the entity's existence, etc., is difficult. For example, it's fairly easy to fake the documents required to form a corporation, partnership, or trust.
First published on BankersOnline.com 07/04/05