47 CFR § 95.2131 - Permissible LPRS uses.
(a) Auditory assistance communications (including, but not limited to, applications such as assistive listening devices, audio description for the blind, and simultaneous language translation) for:
(2) Individuals who require language translation; or
(3) Individuals who may otherwise benefit from auditory assistance communications in educational settings.
(b) Health care related communications for the ill;
(c) Law enforcement tracking signals (for homing or interrogation) including the tracking of persons or stolen goods under authority or agreement with a law enforcement agency (Federal, state, or local) having jurisdiction in the area where the transmitters are placed;