[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: 31CFR306.40] [Page 169] 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 F_Assignments of Registered Securities_General Sec. 306.40 Execution of assignments. The assignment of a registered security should be executed by the owner, or his or her authorized representative, in the presence of an individual authorized to certify assignments. All assignments must be made on the backs of the securities, unless otherwise authorized by the Bureau. An assignment by mark (X) must be witnessed not only by a certifying individual, but also by at least one other person, who should add an endorsement substantially as follows: ``Witness to signature by mark,'' followed by the witness' signature and address. [59 FR 59036, Nov. 15, 1994, as amended by 64 FR 38126, July 15, 1999]