Sec. 74.550  Equipment authorization.

    Each authorization for aural broadcast STL, ICR, and booster 
stations shall require the use of notified or type accepted equipment. 
Equipment which has not been type approved under the equipment 
authorization program and which was in service prior to July 1, 1993, 
may be retained solely for temporary uses necessary to restore or 
maintain regular service provided by approved equipment, because the 
main or primary unit has failed or requires servicing. Such temporary 
uses may not interfere with or impede the establishment of other aural 
broadcast auxiliary links and may not occur during more than 720 
cumulative hours per year. Should interference occur, the licensee must 
take all steps necessary to eliminate it, up to and including cessation 
of operation of the auxiliary transmitter. All unapproved equipment 
retained for temporary use must have been in the possession of the 
licensee prior to July 1, 1993, and may not be obtained from other 
sources. Requirements for obtaining a grant of equipment authorization 
are contained in subpart J of part 2 of the Rules. Equipment designed 
exclusively for fixed operation shall be authorized under notification 
procedures (see Sec. 2.904(d) of this chapter).

    Note: Consistent with the note to Sec. 74.502(a), grandfathered 
equipment in the 942-944 MHz band and STL/ICR users of these frequencies 
in Puerto Rico are also required

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to come into compliance by July 1, 1993. The backup provisions described 
above apply to these stations also.


[ 60 FR 14225 , Mar. 16, 1995]