What 392.2-SLLIRP means in plain language
This citation is issued when an officer determines that your ability to safely operate a commercial motor vehicle has been compromised — not necessarily by a specific device or equipment failure, but by your own physical condition. The regulation targets situations where fatigue, illness, or any similar impairment has degraded your alertness or capability to the point that continuing to drive creates a safety risk.
In practical terms, an inspector can write this citation if you show visible signs of exhaustion — drooping eyes, slurred responses, confusion during the stop — or if you report feeling too sick or tired to drive safely. It is a condition-based violation, meaning the officer is making a judgment call about your state as a person, not just reading a gauge or checking a document.
The key threshold is whether your impairment makes it unsafe to begin or continue the trip. You don't have to be asleep at the wheel. If the officer believes your condition has crossed that line, 392.2-SLLIRP goes on your record.
What our enforcement data actually shows
Across our database of 13 million+ inspections, 392.2-SLLIRP has been cited 54,375 times all-time, making it the 57th most-cited code out of 3,036 FMCSR codes — a top-2% enforcement target by volume. That is not a code inspectors write occasionally; it is one they reach for regularly.
The 12-month citation count of 33,740 tells you this enforcement trend is accelerating, not fading. In the last 90 days alone, our inspection records show 6,853 citations for this code. To put that pace in context, that is roughly 76 citations every single day during that window.
Here is the number that may surprise you: the all-time out-of-service rate for 392.2-SLLIRP is effectively 0.0%. Of 54,375 citations issued, only 23 drivers were placed out of service. The all-FMCSR average OOS rate across all codes is 31.4%, so this code sits dramatically below that benchmark. For most drivers, the citation goes on your record and the truck keeps rolling. That does not mean the violation is harmless — it carries a CSA severity weight of 8 out of a possible scale — but the immediate operational shutdown risk is near zero based on what our data shows.
Monthly volume peaked at 3,452 citations in July 2025 and has remained consistently above 2,400 citations every month through early 2026. This is not a seasonal blip; enforcement is sustained year-round.
Who gets cited most
Looking at the last 180 days, Pennsylvania leads all states with 1,596 citations for 392.2-SLLIRP, followed by Missouri at 972 and Washington at 944. Ohio and Florida round out the top five at 729 and 707 citations respectively. If your routes run through any of these states, inspectors there are clearly active on this violation.
The OOS rate variation across top states is minimal — Pennsylvania, Missouri, Washington, Ohio, and Florida all sit at 0.0%. Kentucky is the one exception in the top ten, with 2 drivers placed out of service across 502 citations, for a 0.4% OOS rate. Even that is well below the national average, but it is the only state in the top group where a non-zero OOS rate appears.
On the carrier side, our data shows fleets such as Swift Transportation Co of Arizona LLC (USDOT 54283) with 169 all-time citations and Auto Haul Express LLC (USDOT 4329325) with 165 citations leading the carrier counts. High-volume carriers operating large fleets will naturally accumulate more citations across any code, and these numbers reflect that scale.
How severe is this compared to similar codes
Within the Unsafe Driving category, 392.2-SLLIRP sits alongside several related codes that share the same underlying regulation but are applied in different contexts. The parent code 392.2 — Operating a CMV while ill or fatigued — has 1,208,164 all-time citations and a 0.8% OOS rate, making it by far the highest-volume variant in this family. Your 392.2-SLLIRP citation at 54,375 all-time citations is a much smaller slice of that enforcement picture.
Code 392.2-SLLEQP — also Operating a CMV while ill or fatigued — is a closer peer worth watching: it carries a 2.4% OOS rate across 72,352 citations, the highest OOS rate among the near-peer codes in this category. That means the equipment-related variant of this same underlying rule results in drivers being pulled from service at a meaningfully higher rate. If your citation ever shifts toward that code, the operational consequences become more serious.
Code 392.2-SLLSR, with 191,232 citations and a 0.1% OOS rate, is the highest-volume sub-code after the parent and behaves similarly to 392.2-SLLIRP in terms of enforcement outcome. Your citation sits in the middle of a family of codes where OOS placement is rare but not impossible.
How to avoid it
The co-occurring violation data from the last 90 days reveals that 392.2-SLLIRP rarely shows up alone. Here is what that pattern tells you to address before you ever pull out of a terminal:
- Check your Hours of Service documentation before every dispatch. Code 395.8A1-HOSP — failing to maintain a record of duty status — appeared in 560 shared inspections alongside this citation. If your logbook or ELD isn't in order, an officer investigating your condition will pull that thread immediately.
- Confirm your medical certificate is current and in possession. Code 391.41APC — operating without a valid medical certificate — co-occurred in 386 inspections. An expired or missing med cert during a fatigue stop makes the interaction significantly worse.
- Verify your CDL is valid and on your person. Code 383.23A2-LCDLN appeared in 614 shared inspections. A driver who appears fatigued and cannot produce a valid CDL is in a much harder position at roadside.
- Walk your tires during every pre-trip, no shortcuts. Code 393.75A3-TAOL — tires leaking or inflated below 50% of maximum pressure — appeared in 385 shared inspections. A low tire found during a stop that also involves a fatigue observation compounds your exposure fast.
- Know your limits before you start, not during the run. This violation is condition-based. If you are fighting a fever, haven't slept adequately, or are managing a condition that affects alertness, the time to address that is at the terminal — not at a weigh station at mile 400. Freightliner and Kenworth platforms make up a large share of cited vehicles in our records, but the violation is about the driver, not the truck. No amount of vehicle maintenance changes the calculus on your personal fitness to drive.