31 C.F.R. § 363.40 How are payments of principal and interest made?
Title 31 - Money and Finance: Treasury
(a) Payment of a savings bond that has reached final maturity. We will purchase a certificate of indebtedness in your TreasuryDirect® account using the proceeds of a matured savings bond. (b) Payments of interest and principal (except a savings bond that has reached final maturity). (1) We provide two methods of receiving payments of principal and interest: (i) Payment to your account at a financial institution by the ACH method, or (ii) Payment to your TreasuryDirect account to purchase a certificate of indebtedness. (2) You may select different payment destinations for principal and interest for a marketable Treasury security. You may change your payment destination at any time, unless the security is in the closed book period. (See §363.210.) (3) If we are unable to deliver a payment, we will use the payment to purchase a certificate of indebtedness in your TreasuryDirect account. [70 FR 57443, Sept. 30, 2005]
Title 31: Money and Finance: Treasury
PART 363—REGULATIONS GOVERNING SECURITIES HELD IN TREASURYDIRECT
Subpart B—General Provisions Governing Securities Held in TreasuryDirect
§ 363.40 How are payments of principal and interest made?