47 CFR § 95.767
RCRS transmitter power
February 16, 2021
Each RCRS transmitter type must be designed such that the transmitter power does not exceed the limits in this section.
(a) 72 and 75 MHz frequency bands. For an RCRS transmitter operating in the 72 and/or 75 MHz frequency bands, the mean transmitter output power must not exceed 0.75 Watts.
(b) 26-28 MHz frequency band. For an RCRS transmitter operating on 27.255 MHz, the mean transmitter output power must not exceed 25 Watts. For an RCRS transmitter operating on 26.995, 27.045, 27.095, 27.145, or 27.195 MHz, the mean transmitter output power must not exceed 4 Watts.