31 C.F.R. § 316.4
Registration
Series E bonds were permitted to be registered as set forth in subpart B of 31 CFR part 315, also published as Department of the Treasury Circular No. 530, current revision.
Series E bonds were permitted to be registered as set forth in subpart B of 31 CFR part 315, also published as Department of the Treasury Circular No. 530, current revision.