31 C.F.R. § 359.26 When are definitive Series I savings bonds validly issued?
Title 31 - Money and Finance: Treasury
A definitive bond is validly issued when it is registered as provided in part 360, and when it bears an issue date and the validation indicia of an authorized issuing agent.
Title 31: Money and Finance: Treasury
PART 359—OFFERING OF UNITED STATES SAVINGS BONDS, SERIES I
Subpart B—Definitive Series I Savings Bonds
§ 359.26 When are definitive Series I savings bonds validly issued?