31 C.F.R. § 351.64
What is the issue date of a book-entry Series EE savings bond?
The issue date of a book-entry Series EE savings bond is the first day of the month in which the security posts to the current holdings of the account owner.
The issue date of a book-entry Series EE savings bond is the first day of the month in which the security posts to the current holdings of the account owner.