§ 321.0 Purpose.
These regulations govern the manner in which financial institutions may qualify and act as paying agents for the redemption of:
(a) Definitive United States Savings Bonds of Series A, B, C, D, E, EE, and I, and United States Savings Notes (Freedom Shares), presented for cash payment; and
(b) Eligible definitive Series E and Series EE savings bonds and savings notes presented for redemption in exchange for Series HH savings bonds under the provisions of Department of the Treasury Circular, Fiscal Service Series No. 2-80 (31 CFR part 352).