47 CFR § 27.77
Restriction on mobile and portable equipment in the 1695-1710 MHz and 1755-1780 MHz bands
February 16, 2021
Mobile and portable stations in the 1695-1710 MHz and 1755-1780 MHz bands may operate only when under the control of a base station. Base stations that enable mobile or portable equipment to operate in the 1695-1710 MHz and 1755-1780 MHz band are subject to prior coordination requirements. See §27.1134 (Protection of Federal Government operations).
[79 FR 32413, June 4, 2014]