What 392.2-SLLLR means in plain language
This citation comes down to one core idea: a driver whose ability to operate a commercial motor vehicle safely has been compromised — whether by fatigue, illness, or any other condition that degrades alertness — should not be behind the wheel. The regulation targets the moment when impairment, regardless of its source, makes continuing to drive a danger to the driver and everyone else on the road.
The key word in enforcement is "impaired." Officers are not looking for a driver who simply feels a little tired. They are looking for observable signs that the driver's condition has crossed a threshold where safe operation is genuinely in question — drowsy eyes, slurred speech, inconsistent answers, or physical symptoms of illness that are hard to miss.
If an officer at the roadside determines your condition meets that threshold, 392.2-SLLLR is the code they write down. It sits within the Unsafe Driving category of the CSA scoring system, carries a severity weight of 8, and will follow your safety record through the SMS system for 36 months.
What our enforcement data actually shows
Across our database of 13 million+ inspections, 392.2-SLLLR has generated 62,247 all-time citations, making it the #46 most-cited code out of 3,036 FMCSR codes. That is not a minor or obscure violation — inspectors know this code and use it regularly.
Enforcement has accelerated sharply. In the last 12 months alone, our inspection records show 37,731 citations issued under this code — meaning more than half of all all-time citations have been written in just the past year. In the most recent 90 days, 8,298 citations were recorded. Looking at the monthly trend, volume peaked at 3,718 citations in July 2025 and has stayed consistently above 2,800 citations per month through early 2026, with 3,630 citations in March 2026.
Despite that volume, the out-of-service picture is surprisingly limited. Our data shows only 2 out-of-service placements out of 62,247 total citations — an effective OOS rate of 0.0%. To put that in context, the all-FMCSR average OOS rate across all codes in our database is 31.4%. This code comes in far below that benchmark. In practical terms, being cited for 392.2-SLLLR almost never results in your truck being parked at the roadside — but the citation still lands in your CSA record with a severity weight of 8.
Who gets cited most
Looking at the last 180 days, our inspection records show Georgia leading all states with 3,207 citations, followed by Indiana with 2,512 citations and California with 2,049 citations. South Carolina, Massachusetts, and Michigan round out the next tier with 1,382, 1,270, and 1,002 citations respectively.
OOS rates across all top states are uniformly at 0.0%, so there is no meaningful variation in how enforcement outcomes differ by geography — the pattern holds coast to coast and across the Southeast, Midwest, and Northeast alike.
On the carrier side, our data shows fleets such as Federal Express Corporation (USDOT 86876) with 474 all-time citations and J B Hunt Transport Inc (USDOT 80806) with 469 all-time citations appearing at the top of the list. United Parcel Service Inc (USDOT 21800) follows with 422 citations. These are among the largest commercial fleets operating hundreds of thousands of driver hours annually — high citation counts at that scale reflect exposure volume, not a pattern specific to any one company's practices.
How severe is this compared to similar codes
Within the same category, 392.2-SLLLR sits in a cluster of codes that share the same regulatory foundation but differ in how inspectors apply them. The parent code 392.2 — also labeled as operating a CMV while ill or fatigued — has accumulated 1,208,164 citations in our database with a 0.8% OOS rate, making it dramatically higher in volume than this specific subcode. The variant 392.2-SLLSR carries 191,232 citations and a 0.1% OOS rate, again significantly more volume than 392.2-SLLLR's 62,247.
One peer code worth flagging is 392.2-SLLEQP, which our data shows at 72,352 citations but with a 2.4% OOS rate — the highest among the peer group. That rate is still well below the 31.4% all-FMCSR average, but it is notably higher than 392.2-SLLLR's 0.0% rate, suggesting equipment-related fatigue citations are more likely to result in a truck being placed out of service than the standard ill-or-fatigued citation you just received.
Bottom line: 392.2-SLLLR is a high-frequency, low-OOS code. You almost certainly kept your truck moving, but a severity weight of 8 in the Unsafe Driving BASIC is not something to dismiss — it can push a carrier's SMS percentile in a hurry when citations accumulate.
How to avoid it
The co-occurring codes in our 90-day data tell a useful story about what inspections that produce 392.2-SLLLR citations also tend to find. Here is what to address before and during your pre-trip:
- Check your speed before the stop happens. Speeding codes 392.2-SLLS2 (6-10 mph over), 392.2-SLLS1 (1-5 mph over), 392.2-SLLS3 (11-14 mph over), and 392.2-SLLS4 (15+ mph over) all appear as frequent co-occurring violations in our 90-day data. Excessive speed is one of the observable behaviors that triggers an officer to look harder at driver condition. Keeping your speed legal removes that first red flag.
- Have your ELD records clean and accessible. Code 395.24 (ELD Form and Manner) appeared in 379 shared inspections in our 90-day data. If an officer is already looking at a fatigued-driving situation, messy or incomplete ELD records amplify the problem. Confirm your ELD is functioning, synced, and your logs are current before you roll.
- Carry your medical certificate. Code 391.41APC — operating without a valid medical certificate in possession — appeared in 211 shared inspections. Not having your med cert on you during a fatigue-related stop makes the officer's job easier and yours harder.
- Print backup RODS graph-grids. Code 395.22H4-ELDBRODS appeared in 181 shared inspections. Keep a supply of blank paper log grids in the cab. If your ELD malfunctions and you cannot produce backup documentation during a stop that already involves a fatigue question, you compound the citation count significantly.
- Don't start the drive if you're not fit to drive. The simplest prevention is also the most direct: if you are genuinely ill or have not had adequate rest, exercising your right to delay the trip is far less costly than a severity-8 CSA citation. Our data shows 37,731 citations in the last 12 months — inspectors are writing this code at a steady, high rate. The officer at the roadside has seen it before.