31 C.F.R. § 328.4 Effect of restrictive endorsements.
Title 31 - Money and Finance: Treasury
Bearer securities bearing restrictive endorsements as herein provided will thereafter be nonnegotiable and payment, redemption, or exchange will be made only as provided in such endorsements.
Title 31: Money and Finance: Treasury
PART 328—RESTRICTIVE ENDORSEMENTS OF U.S. BEARER SECURITIES
§ 328.4 Effect of restrictive endorsements.