What 392.2RR means in plain language
FMCSR 392.2RR addresses a fundamental safety issue: a driver's physical or mental condition that compromises their ability to operate a commercial motor vehicle safely. The regulation applies when your fatigue, illness, or any other impairment is severe enough that continuing—or even beginning—to drive creates an unsafe situation.
This is different from a specific violation tied to hours of service or a documented medical event. Instead, an inspector observed or learned something during the roadside inspection—perhaps erratic driving behavior, slurred speech, drowsiness, or your own admission of sickness—that led them to conclude your condition was unsafe. It's a judgment call based on immediate safety risk, not a paperwork failure.
The key word is impairment. Minor fatigue after a long day, or sniffles from a cold, won't trigger this citation. But if an inspector believes your alertness or ability is so compromised that you shouldn't be behind the wheel, they will issue 392.2RR and remove you from service—or, more commonly, advise you to rest before continuing.
What our enforcement data actually shows
Across 13 million inspections in our database, 392.2RR is a rare citation. We have recorded 17 citations all-time, with 7 citations in the last 12 months and 1 in the last 90 days. This code ranks #2011 of 3,036 FMCSR codes by citation volume.
None of the 17 all-time citations resulted in an out-of-service order—an OOS rate of 0.0%. For context, the all-FMCSR average OOS rate is 31.4%, so 392.2RR is assigned without immediate removal from service far more often than most violations. This pattern reflects the inspector's discretion: a 392.2RR citation is typically a warning or a documented observation, with the expectation that you will rest before resuming operations.
In the last 90 days, we saw only 1 citation. Across the last 12 months, the trend has been modest but consistent—spikes in November 2025 (2 citations) and January 2026 (2 citations), likely tied to winter fatigue hazards and holiday-schedule pressures.
Who gets cited most
Our inspection records show citations for 392.2RR concentrated in Iowa and Texas over the last 180 days. Iowa has 2 citations with a 0.0% OOS rate, and Texas also has 2 citations with a 0.0% OOS rate. No material variation in enforcement outcomes across these states.
Looking at all-time data by carrier, our database shows fleets such as J B HUNT TRANSPORT INC (USDOT 80806) with 1 citation, and other carriers including WESCO GAS & WELDING SUPPLY INC, H & M TRUCKING INC, and ROSE TRANSFER LLC each with 1 citation. The distribution is broadly even, indicating that 392.2RR is not concentrated among a small set of operators—it occurs sporadically across the industry.
How severe is this compared to similar codes
392.2RR is one variant within a broader family of fatigue and illness regulations. Our data shows the parent code 392.2 — Operating a CMV while ill or fatigued — has accumulated 1,208,164 citations with a 0.8% OOS rate. A related variant, 392.2RG (also for operating while ill or fatigued), has 96,652 citations with a 0.1% OOS rate. Another peer, 392.2-SLLSR, carries 191,232 citations and a 0.1% OOS rate.
The 392.2RR variant is significantly less common than its peer codes, and the 0.0% OOS rate suggests it is enforced as a procedural warning or documented concern rather than an immediate safety removal. In contrast, 392.2-SLLEQP (another fatigue variant) has a 2.4% OOS rate, indicating stricter enforcement in certain contexts. The pattern suggests that 392.2RR citations, when issued, reflect inspector discretion to flag a driver's condition without mandating immediate removal from service.
How to avoid it
Prevention begins with honest self-assessment before and during every shift:
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Start rested. Do not begin a trip if you are already fatigued from insufficient sleep, overnight driving, or a previous long haul. A 392.2RR citation signals that you should have rested first.
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Monitor your alertness during the shift. If you feel drowsy—heavy eyelids, difficulty focusing, unintended lane drift—pull over safely at the next rest area or truck stop. Do not wait for an inspector to observe it.
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Know your medical limits. If you are ill (fever, severe congestion, medication side effects), postpone the trip or arrange for another driver. Inspectors are trained to recognize signs of illness, and your safety is more important than the schedule.
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Perform a thorough pre-trip inspection. Our data shows that 392.2RG (a related fatigue code) commonly appears alongside 396.17C (no proof of periodic inspection) in the same roadside event. A complete walk-around and vehicle systems check—brake condition, lights, tire pressure—ensures you are not distracted or stressed by vehicle concerns once you're on the road, which compounds fatigue risk.
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Ensure your vehicle is mechanically sound. International and Freightliner models (INTL and FRHT) together account for 8 of the 17 all-time 392.2RR citations. Regular maintenance and timely repairs reduce the mental load and mechanical surprises that can intensify fatigue during long drives.
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Take breaks on schedule. Federal Hours of Service rules set mandatory rest periods. Use them. Fatigue builds incrementally; a 15-minute nap or a 30-minute walk can reset your alertness.
If you receive a 392.2RR citation, the inspector's message is clear: rest before you continue. It is not (typically) an out-of-service order, but it is a formal record that your condition was observed as unsafe. Use it as a data point to adjust your trip planning, sleep schedule, or health routine so it does not happen again.