Sec.  90.627   Limitation on the number of frequency pairs that may be assignable
for trunked systems and on the number of trunked systems.

   (a) The maximum number of frequency pairs that may be assigned at any one
   time  for the operation of a trunked radio system is twenty, except as
   specified in  Sec. 90.621(a)(1)(iv).

   (b) No non-SMR licensee will be authorized an additional trunked system
   within 64 kilometers (40 miles) of an existing trunked system, except where:

   (1) The additional trunked system will be used to provide radio facilities
   for a single entity, where the additional system is justified on the basis
   of the requirements of the proposed single user; or,

   (2) The licensee's existing trunked system is loaded to at least 70 mobile
   and control stations per channel.

   [ 47 FR 41032 , Sept. 16, 1982, as amended at  48 FR 44559 , Sept. 29, 1983;  48 FR 51929 , Nov. 15, 1983;  49 FR 36377 , Sept. 17, 1984;  51 FR 37404 , Oct. 22,
   1986;  53 FR 12157 , Apr. 13, 1988;  58 FR 44963 , Aug. 25, 1993;  59 FR 59966 ,
   Nov. 21, 1994]