§ 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.

   (e) Mobile units may be operated under an aeronautical enroute station
   authorization so long as the units are limited to use at an airport and are
   only used to communicate with aircraft on the ground or the associated
   aeronautical enroute station. Mobile units are further limited to operation
   on the VHF frequencies listed in 87.263(a)(1).

   (f) Mobile units licensed under paragraph (e) of this section shall not be
   operated on air traffic control frequencies, nor cause harmful interference
   to, communications on air traffic control frequencies.

   [ 53 FR 28940 , Aug. 1, 1988, as amended at  64 FR 27476 , May 20, 1999]

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