49 C.F.R. § 392.71 Radar detectors; use and/or possession.
Title 49 - Transportation
(a) No driver shall use a radar detector in a commercial motor vehicle, or operate a commercial motor vehicle that is equipped with or contains any radar detector. (b) No motor carrier shall require or permit a driver to violate paragraph (a) of this section. [58 FR 67375, Dec. 21, 1993]
Title 49: Transportation
PART 392—DRIVING OF COMMERCIAL MOTOR VEHICLES
Subpart G—Prohibited Practices
§ 392.71 Radar detectors; use and/or possession.