31 C.F.R. § 344.11 How do I redeem a Special Zero Interest Security before maturity?
Title 31 - Money and Finance: Treasury
Follow the provisions of §344.6(a) through (g), except that no market charge or penalty will apply when you redeem a special zero interest security before maturity.
Title 31: Money and Finance: Treasury
PART 344—U.S. TREASURY SECURITIES—STATE AND LOCAL GOVERNMENT SERIES
Subpart D—Special Zero Interest Securities
§ 344.11 How do I redeem a Special Zero Interest Security before maturity?