Every watercraft operated on the waters of this City shall be numbered. No person shall operate or give permission for the operation of any watercraft on such waters unless the watercraft is numbered in accordance with Federal law or a federally approved numbering system of this or another state, and unless:
   (a)    The certificate of number awarded to such watercraft is in effect.
   (b)    The identifying number set forth in the certificate of number is displayed on each side of the bow of such watercraft.  (ORC 1547.53)