CFR /  Title 31  /  Part 351  /  Sec. 351.34 What are the maturity periods of Series EE bonds with issue

(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. [70 FR 17288, Apr. 9, 2005]