Sec.  18.301   Operating frequencies.

   ISM  equipment  may be operated on any frequency above 9 kHz except as
   indicated in  Sec. 18.303. The following frequency bands, in accordance with
    Sec. 2.106 of the rules, are allocated for use by ISM equipment:


------------------------------------------------------------------------
               ISM frequency                          Tolerance
------------------------------------------------------------------------
6.78 MHz..................................   ±15.0 kHz
13.56 MHz.................................   ±7.0 kHz
27.12 MHz.................................   ±163.0 kHz
40.68 MHz.................................   ±20.0 kHz
915 MHz...................................   ±13.0 MHz
2,450 MHz.................................   ±50.0 MHz
5,800 MHz.................................   ±75.0 MHz
24,125 MHz................................   ±125.0 MHz
61.25 GHz.................................   ±250.0 MHz
122.50 GHz................................   ±500.0 MHz
245.00 GHz................................   ±1.0 GHz
------------------------------------------------------------------------

   Note: The use of the 6.78 MHz  ±15 kHz frequency band is subject to the
   conditions of footnote 524 of the Table of Allocations. See  Sec. 2.106.