§  90.311   Frequencies.

   (a) Except as provided for in § 90.315 and except for those frequencies
   allocated to services in part 22 of this chapter (see § § 22.591, 22.621,
   22.651, and 22.1007 of this chapter) the following frequencies in the
   band 470-512 MHz may be assigned as indicated in the table below. The
   first and last assignable frequencies are shown. Assignable frequencies
   occur in increments of 6.25 kHz. The separation between base and mobile
   transmit frequencies is 3 MHz for two frequency operation.
   Channel Assignment Urbanized Area General access pool
   Base and mobile Mobile
   14 Boston, MA
   Chicago, IL
   Cleveland, OH
   Miami, FL
   New York/N.E. NJ
   Pittsburgh, PA 470.30625 to 472.99375 473.30625 to 475.99375
       Los Angeles, CA 470.05625 to 472.99375 473.05625 to 475.99375
   15 Chicago, IL
   Cleveland, OH
   Detroit, MI
   New York/N.E. NJ 476.30625 to 478.99375 479.30625 to 481.99375
   16 Boston, MA
   Dallas/Fort Worth, TX
   Detroit, MI
   San Francisco/Oakland, CA 482.30625 to 484.99375 485.30625 to 487.99375
       Los Angeles, CA (Use is restricted to Public Safety Pool eligibles)
   482.00625 to 484.99375 485.00625 to 487.99375
   17 Houston, TX
   San Francisco/Oakland, CA
   Washington, DC/MD/VA 488.30625 to 490.99375 491.30625 to 493.99375
   18 Pittsburgh, PA
   Washington, DC/MD/VA 494.30625 to 496.99375 497.30625 to 499.99375
   19 Philadelphia, PA 500.30625 to 502.99375 503.30625 to 505.99375
   20 Los Angeles, CA 506.13125 to 508.99375 509.13125 to 511.99375
       Philadelphia, PA 506.30625 to 508.99375 509.30625 to 511.99375

   (1) Channel availability in the General Access Pool in any of the
   urbanized areas referred to in the table depends on whether that
   channel is presently assigned to one of the following categories of
   users:

   (i) Public safety (as defined in § 90.20(a));

   (ii) Power and telephone maintenance licensees (as defined in § 90.7);

   (iii) Special industrial licensees (as defined in § 90.7);

   (iv) Business licensees (as defined in § 90.35(a));

   (v) Petroleum, forest products, and manufacturers licensees (as defined
   in § 90.7);

   (vi) Railroad, motor carrier, and automobile emergency licensees (as
   defined in § 90.7); and

   (vii) Taxicab licensees (as defined in § 90.7).

   (2) If assigned, subsequent authorizations will only be granted to
   users from the same category. If unassigned, or should a channel
   subsequently become unassigned, it will be treated as available in the
   General Access Pool.

   (3) Normally, each channel should be substantially loaded in accordance
   with the standards set out in § 90.313.

   (4) The following frequencies will be authorized a maximum bandwidth of
   6 kHz.
   Channel Frequency
   14       470.30625
            475.99375
   15       476.30625
            481.99375
   16       482.30625
            487.99375
   17       488.30625
            493.99375
   18       494.30625
            499.99375
   19       500.30625
            505.99375
   20       506.30625
            511.99375

   (b) [Reserved]

   [ 43 FR 54791 , Nov. 22, 1978, as amended at  44 FR 49692 , Aug. 24, 1979;
    51 FR 4362 , Feb. 4, 1986;  60 FR 37272 , July 19, 1995;  62 FR 2041 , Jan.
   15, 1997;  62 FR 18932 , Apr. 17, 1997;  64 FR 36270 , July 6, 1999]