Rulebook › 49 CFR Part 392
PART 392—DRIVING OF COMMERCIAL MOTOR VEHICLES
Official text from the eCFR, current as of 2026-10-21.
Subpart A—General
- § 392.1 Scope of the rules in this part.
- § 392.2 Applicable operating rules.
- § 392.3 Ill or fatigued operator.
- § 392.4 Drugs and other substances.
- § 392.5 Alcohol prohibition.
- § 392.6 Schedules to conform with speed limits.
- § 392.7 Equipment, inspection and use.
- § 392.8 Emergency equipment, inspection and use.
- § 392.9 Inspection of cargo, cargo securement devices and systems.
- § 392.9a Operating authority.
- § 392.9b Prohibited transportation.
Subpart B—Driving of Commercial Motor Vehicles
- § 392.10 Railroad grade crossings; stopping required.
- § 392.11 Railroad grade crossings; slowing down required.
- § 392.12 Highway-rail crossings; safe clearance.
- § 392.13 [Reserved]
- § 392.14 Hazardous conditions; extreme caution.
- § 392.15 Prohibited driving status.
- § 392.16 Use of seat belts.
- § 392.18 [Reserved]
Subpart C—Stopped Commercial Motor Vehicles
- § 392.20-392.21 [Reserved]
- § 392.22 Emergency signals; stopped commercial motor vehicles.
- § 392.24 Emergency signals; flame-producing.
- § 392.25 Flame producing devices.
Subpart D—Use of Lighted Lamps and Reflectors
Subpart E—License Revocation; Duties of Driver
Subpart F—Fueling Precautions
Subpart G—Prohibited Practices
- § 392.60 Unauthorized persons not to be transported.
- § 392.61 [Reserved]
- § 392.62 Safe operation, buses.
- § 392.63 Towing or pushing loaded buses.
- § 392.64 Riding within closed commercial motor vehicles without proper exits.
- § 392.65 [Reserved]
- § 392.66 Carbon monoxide; use of commercial motor vehicle when detected.
- § 392.67 Heater, flame-producing; on commercial motor vehicle in motion.
- § 392.68-392.69 [Reserved]
- § 392.71 Radar detectors; use and/or possession.