CFR › Title 31 › Part 351 › §351.3431 CFR §351.34Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy link(a)Original maturity. Bonds reach original maturity at 20 years after the issue date.(b)Final maturity. Bonds reach final maturity at 30 years after the issue date. Bonds cease to earn interest at final maturity.