§ 315.40 Special provisions for payment.
(a) Owner's signature not required. A bond may be paid by a paying agent or a designated Federal Reserve Bank without the owner's signature to the request for payment, if the bond bears the special endorsement of a financial institution specifically qualified to place such an endorsement on savings bonds under the provisions of Department of the Treasury Circular No. 888, current revision (31 CFR part 330).
(b) Signature by mark. A signature by mark (X) must be witnessed by at least one disinterested person and a certifying officer. See subpart J. The witness must attest to the signature by mark substantially as follows: “Witness to signature by mark,” followed by his or her signature and address.