Sec. 80.955  Radiotelephone installation.

    (a) Each U.S. flag vessel of less than 38 meters (124 feet) in 
length while subject to the Great Lakes Agreement must have a 
radiotelephone meeting the provisions of this subpart in addition to the 
other rules in this part governing ship stations using telephony.
    (b) Each U.S. flag vessel of 38 meters (124 feet) or more in length 
while subject to the Great Lakes Agreement must have a minimum of two 
VHF radiotelephone installations in operating condition meeting the 
provisions of this subpart. The second VHF installation must be 
electrically separate from the first VHF installation. However, both may 
be connected to the main power supply provided one installation can be 
operated from a separate power supply located as high as practicable on 
the vessel.
    (c) This paragraph does not require or prohibit the use of other 
frequencies for use by the same ``radiotelephone installation'' for 
communication authorized by this part.