Sec.  80.367   General uses—radiotelephony.

   (a) Ship stations communicating with foreign coast stations may operate on
   any frequency designated by that coast station.

   (b) Radiotelephony stations communicating with a Government station may
   transmit on a Government frequency when authorized to do so by the
   Government station or agency if the emission, bandwidth and frequency
   tolerance of the maritime station are within the same limits as the
   Government station.

   (c) Frequencies assigned to Government radio stations are assignable to
   non-Government maritime stations for radiotelephony communications with
   other non-Government stations in connection with activities performed in
   coordination with or on behalf of the Government.

   (d) Frequencies in the 2000–27500 kHz band will be authorized only to ship
   stations that in addition are authorized to use frequencies in the 156–162
   MHz band.

   (e) Frequencies in the 2000–2850 kHz band will be authorized to private
   coast stations that in addition are authorized to use frequencies in the
   156–162 MHz band.

   (f) Ship and coast stations authorized to use frequencies in both the
   2000–27500 kHz and 156–162 MHz bands must not use frequencies in the
   2000–27500 kHz band for communications with any other station which is
   within the VHF service range.

   (g) Coast and ship station radiotelephone working frequencies are available
   for DSC general purpose calling under the provisions of  Sec. 80.207(a).

   (h) Digital selective calling techniques are not authorized on the
   frequencies 2182 kHz or 156.800 MHz.