[Code of Federal Regulations] [Title 31, Volume 2] [Revised as of July 1, 2007] From the U.S. Government Printing Office via GPO Access [CITE: 31CFR306.18] [Page 160] TITLE 31--MONEY AND FINANCE: TREASURY CHAPTER II--FISCAL SERVICE, DEPARTMENT OF THE TREASURY PART 306_GENERAL REGULATIONS GOVERNING U.S. SECURITIES--Table of Contents Subpart C_Transfers, Exchanges and Reissues Sec. 306.18 Exchanges of coupon securities for registered securities. Coupon securities presented for exchange for registered securities should have all matured interest coupons detached. All unmatured coupons should be attached, except that if presented when the transfer books are closed (in which case the exchange will be effected on or after the date on which the books are reopened), the next maturing coupons should be detached and held for collection in ordinary course when due. If any coupons which should be attached are missing, the securities must be accompanied by a remittance in an amount equal to the face amount of the missing coupons. The new registered securities will bear interest from the interest payment date next preceding the date on which the exchange is made.