47 CFR 18.301: Operating frequencies.

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

Table 1 to § 18.301

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

2450 MHz ± 50.0 MHz

5800 MHz ± 75.0 MHz

24.125 GHz ± 125.0 MHz

61.25 GHz ± 250.0 MHz

122.50 GHz ± 500.0 MHz

245.00 GHz ± 1.0 GHz