Sec. 21.100  Frequencies.

    The frequencies available for use in the service covered by this 
part are listed in subpart K. Assignment of frequencies will be made 
only in such a manner as to facilitate the rendition of communication 
service on an interference-free basis in each service area. Unless 
otherwise indicated, each frequency available for use by stations in 
this service will be assigned exclusively to a single applicant in any 
service area. All applicants for, and licensees of, stations in this 
service shall cooperate in the selection and use of the frequencies 
assigned in order to minimize interference and thereby obtain the most 
effective use of the authorized facilities. In the event harmful 
interference occurs or appears likely to occur between two or more radio 
systems and such interference cannot be resolved between the licensees 
thereof, the Commission may, after notice and opportunity for hearing, 
require the licensees to make such changes in operating techniques or 
equipment as it may deem necessary to avoid such interference.
[ 61 FR 26675 , May 28, 1996]