[Code of Federal Regulations] [Title 31, Volume 2] [Revised as of July 1, 2002] From the U.S. Government Printing Office via GPO Access [CITE: 31CFR358.17] [Page 431] TITLE 31--MONEY AND FINANCE: TREASURY CHAPTER II--FISCAL SERVICE, DEPARTMENT OF THE TREASURY PART 358--REGULATIONS GOVERNING BOOK-ENTRY CONVERSION OF BEARER CORPORA AND DETACHED BEARER COUPONS--Table of Contents Sec. 358.17 Can BECCS and CUBES securities be reconstituted to physical form? After bearer corpora and detached bearer coupons have been converted to book-entry form, reconversion to physical form is prohibited. The reconstitution of a BECCS security with CUBES securities or any combination of Treasury obligations is prohibited.