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.

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    (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.