31 C.F.R. § 359.5 What is the maturity period of a Series I savings bonds?
Title 31 - Money and Finance: Treasury
Series I savings bonds have a total maturity period of 30 years from the issue date, consisting of an original maturity period of 20 years and an extension period of 10 years.
Title 31: Money and Finance: Treasury
PART 359—OFFERING OF UNITED STATES SAVINGS BONDS, SERIES I
Subpart A—General Information
§ 359.5 What is the maturity period of a Series I savings bonds?
