Regulations last checked for updates: May 17, 2024

Title 47 - Telecommunication last revised: May 10, 2024
§ 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
[85 FR 38740, June 26, 2020]
source: 50 FR 36067, Sept. 5, 1985, unless otherwise noted.
cite as: 47 CFR 18.301