47 CFR § 95.2773
MURS authorized bandwidths
February 16, 2021
Each MURS transmitter type must be designed to meet the emission bandwidth limitations in this section.
(a) The occupied bandwidth of emissions transmitted on the center frequencies 151.820 MHz, 151.880 MHz, and 151.940 MHz must not exceed 11.25 kHz.
(b) The occupied bandwidth of emissions transmitted on the center frequencies 154.570 MHz and 154.600 MHz must not exceed 20.0 kHz.
(c) The occupied bandwidth of type A3E emissions must not exceed 8.0 kHz.