12 C.F.R. § 221.103
Questions have arisen as to the adequacy of statements received by lending banks under § 221.3(c) , "Purpose Statement," in the case of loans to brokers or dealers secured by margin stock where the proceeds of the loans are to be used to finance customer transactions involving the purchasing or carrying of margin stock. While some such loans may qualify for exemption under §§ 221.1(b)(2) , 221.4 , 221.5 or 221.6 , unless they do qualify for such an exemption they are subject to this part. For example, if a loan so secured is made to a broker to furnish cash working capital for the conduct of his brokerage business (i.e., for purchasing and carrying securities for the account of customers), the maximum loan value prescribed in § 221.7 (the Supplement) would be applicable unless the loan should be of a kind exempted under this part. This result would not be affected by the fact that the margin stock given as security for the loan was or included margin stock owned by the brokerage firm. In view of the foregoing, the statement referred to in § 221.3(c) which the lending bank must accept in good faith in determining the purpose of the loan would be inadequate if the form of statement accepted or used by the bank failed to call for answers which would indicate whether or not the loan was of the kind discussed elsewhere in this section.
12 C.F.R. §221.103