47 CFR § 95.2167
LPRS transmitting power
February 16, 2021
Each LPRS transmitter type not intended for use with an AMTS station must be designed to satisfy the transmitting power limits in paragraph (a) of this section. The licensee of each AMTS station is responsible for compliance with paragraph (b) of this section.
(a) The ERP of an LPRS transmitter, other than an LPRS transmitter used with an AMTS station, must not exceed 100 mW.
(b) The ERP of an LPRS transmitter used with an AMTS station must not exceed 1 Watt.