Sec.  80.901   Applicability.

   The provisions of Part III of Title III of the Communication Act require
   United States vessels which transport more than six passengers for hire
   while  such  vessels  are  being navigated on any tidewater within the
   jurisdiction of the United States adjacent or contiguous to the open sea, or
   in the open sea to carry a radiotelephone installation complying with this
   subpart.  The provisions of Part III do not apply to vessels which are
   equipped with a radio installation for compliance with Part II of Title III
   of the Act, or for compliance with the Safety Convention, or to vessels
   navigating on the Great Lakes.