[Code of Federal Regulations] [Title 31, Volume 2] [Revised as of July 1, 2006] From the U.S. Government Printing Office via GPO Access [CITE: 31CFR363.205] [Page 502] TITLE 31--MONEY AND FINANCE: TREASURY CHAPTER II--FISCAL SERVICE, DEPARTMENT OF THE TREASURY PART 363_REGULATIONS GOVERNING SECURITIES HELD IN TREASURYDIRECT--Table of Contents Subpart F_Marketable Treasury Securities Sec. 363.205 How do I reinvest the proceeds of a maturing security held in TreasuryDirect[supreg]? You can reinvest the proceeds of a maturing security held in TreasuryDirect by first directing that the proceeds from the maturing security be used to purchase a certificate of indebtedness in your account, and then using the redemption proceeds of your certificate of indebtedness to purchase another security. Any purchase using the proceeds from a certificate of indebtedness is considered a reinvestment.