§ 306.15 Transfers and exchanges of securities—closed periods.
(a) General. The transfer of registered securities should be made by assignment in accordance with subpart F of this part. Transferable registered securities are eligible for denominational exchange. Specific instructions for issuance and delivery of the new securities, signed by the owner or his authorized representative, must accompany the securities presented. (Form PD 3905 or PD 1827, as appropriate, may be used.) Denominational exchanges may be made at any time. Securities presented for transfer must be received by the Bureau not less than 1 full month before the date on which the securities mature or become redeemable pursuant to a call for redemption before maturity. Any security so presented which is received too late to comply with this provision will be accepted for payment only.