49 CFR § 392.71 - Radar detectors; use and/or possession.

---
identifier: "/us/cfr/t49/s392.71"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "49 CFR § 392.71 - Radar detectors; use and/or possession."
title_number: 49
title_name: "Transportation"
section_number: "392.71"
section_name: "Radar detectors; use and/or possession."
chapter_name: "FEDERAL MOTOR CARRIER SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION"
subchapter_number: "B"
subchapter_name: "FEDERAL MOTOR CARRIER SAFETY REGULATIONS"
part_number: "392"
part_name: "DRIVING OF COMMERCIAL MOTOR VEHICLES"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "49 U.S.C. 504, 13902, 31136, 31151, 31502; Section 112 of Pub. L. 103-311, 108 Stat. 1673, 1676 (1994), as amended by sec. 32509 of Pub. L. 112-141, 126 Stat. 405-805 (2012); and 49 CFR 1.87."
regulatory_source: "33 FR 19732, Dec. 25, 1968, unless otherwise noted."
cfr_part: "392"
---


# 392.71 Radar detectors; use and/or possession.

(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]