31 C.F.R. § 308.3 Exchanges of denominations.
Title 31 - Money and Finance: Treasury
Pending availability of definitive securities, exchanges of authorized denominations of interim certificates, from higher to lower will be permitted.
Title 31: Money and Finance: Treasury
PART 308—GENERAL REGULATIONS GOVERNING FULL-PAID INTERIM CERTIFICATES
§ 308.3 Exchanges of denominations.