[Code of Federal Regulations] [Title 33, Volume 2] [Revised as of July 1, 2008] From the U.S. Government Printing Office via GPO Access [CITE: 33CFR173.25] [Page 879] TITLE 33--NAVIGATION AND NAVIGABLE WATERS CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY(CONTINUED) PART 173_VESSEL NUMBERING AND CASUALTY ANDACCIDENT 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 thecertificate or lease or rental agreement required bySec. 173.21 is carried on board in such a manner that it canbe handed to a person authorized under Sec. 173.23 toinspect it.