31 C.F.R. § 359.54 When is a book-entry Series I savings bonds validly issued?
Title 31 - Money and Finance: Treasury
A book-entry bond is validly issued when it is posted to your New Treasury Direct account.
Title 31: Money and Finance: Treasury
PART 359—OFFERING OF UNITED STATES SAVINGS BONDS, SERIES I
Subpart C—Book-Entry Series I Savings Bonds
§ 359.54 When is a book-entry Series I savings bonds validly issued?
