U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 28, 2025
Series I savings bonds are issued in book-entry form. Effective January 1, 2012, Treasury discontinued the issuance of definitive Series I savings bonds.
Regulations most recently checked for updates: Aug 28, 2025
Series I savings bonds are issued in book-entry form. Effective January 1, 2012, Treasury discontinued the issuance of definitive Series I savings bonds.