Sec. 87.261  Scope of service.

    (a) Aeronautical enroute stations provide operational control 
communications to aircraft along domestic or international air routes. 
Operational control communications include the safe, efficient and 
economical operation of aircraft, such as fuel, weather, position 
reports, aircraft performance, and essential services and supplies. 
Public correspondence is prohibited.
    (b) Service must be provided to any aircraft station licensee who 
makes cooperative arrangements for the operation, maintenance and 
liability of the stations which are to furnish enroute service. In 
emergency or distress situations service must be provided without prior 
arrangements.
    (c) Except in Alaska, only one aeronautical enroute station licensee 
will be authorized at any one location. In Alaska, only one aeronautical 
enroute station licensee in the domestic service and one aeronautical 
enroute station licensee in the international service will be authorized 
at any one location. (Because enroute stations may provide service over 
a large area containing a number of air routes or only provide 
communications in the local area of an airport, location here means the 
area which can be adequately served by the particular station.)
    (d) In Alaska, only stations which serve scheduled air carriers will 
be licensed to operate aeronautical enroute stations. Applicants must 
show that the station will provide communications only along routes 
served by scheduled air carriers.