View all text of Subpart B [§ 359.25 - § 359.44]
§ 359.28 - Are taxpayer identification numbers (TINs) required for the registration of definitive Series I savings bonds?
The registration of a definitive Series I savings bond must include the TIN of the owner or first-named coowner. If the bond was purchased as a gift or award and the owner's TIN is not known, the TIN of the purchaser must be included in the registration of the bond.