[Code of Federal Regulations] [Title 33, Volume 2] [Revised as of July 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 33CFR173.25] [Page 803] TITLE 33--NAVIGATION AND NAVIGABLE WATERS CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) PART 173--VESSEL NUMBERING AND CASUALTY AND ACCIDENT REPORTING--Table of Contents Subpart B--Numbering Sec. 173.25 Location of certificate of number. No person may use a vessel to which this part applies unless the certificate or lease or rental agreement required by Sec. 173.21 is carried on board in such a manner that it can be handed to a person authorized under Sec. 173.23 to inspect it.