What 392.15 means in plain language
FMCSR 392.15 prohibits any driver from performing safety-sensitive functions—which means operating a commercial motor vehicle—if they are listed in the Federal Drug and Alcohol Clearinghouse as ineligible to drive. The Clearinghouse is a national database that tracks drivers who have tested positive for controlled substances, failed alcohol tests, or refused to submit to testing.
If you've been cited for 392.15, it means an inspector checked the Clearinghouse at the roadside and found your name recorded there. This is not a judgment call. It is a hard regulatory barrier: once you appear in that database, you cannot legally turn a key in a commercial truck until the Clearinghouse removes your record. The removal process requires completion of the DOT's Return-to-Duty program, which includes substance abuse professional evaluation, treatment if required, and a return-to-duty test confirming a negative result.
What our enforcement data actually shows
Across our 13 million inspection records, 392.15 carries the highest severity profile among all FMCSR codes we track. Out of 1,496 all-time citations for 392.15, 1,476 resulted in the driver being placed out of service—a 98.7% out-of-service rate. This is drastically higher than the 31.4% average OOS rate across all FMCSR codes.
In the last 12 months, we recorded 762 citations for 392.15. In the last 90 days alone, 154 citations were issued. The monthly trend shows sustained enforcement intensity: June 2025 saw 71 citations, October 2025 saw 81, and the pattern has remained consistent through early 2026, with the most recent full month (March 2026) showing 66 citations. This code ranks 606th out of 3,036 FMCSR codes by citation volume, but its near-universal OOS outcome means it is treated as one of the most serious violations on the road.
Who gets cited most
Our inspection records show enforcement of 392.15 is concentrated in a small number of high-volume states. In the last 180 days, Texas led all states with 80 citations, all of which resulted in out-of-service status (100% OOS rate). Georgia followed with 18 citations and an identical 100% OOS rate, and Alabama recorded 17 citations, again with 100% OOS. All three states show zero variation in enforcement outcome: every driver cited for 392.15 was pulled from service.
Other high-enforcement states include Arizona (16 citations), Missouri (15), Ohio (14), New York (14), Louisiana (13), and Colorado (11)—all with 100% OOS rates across the board. The uniformity across states reflects the binary nature of the Clearinghouse: you are either listed or you are not.
Our data shows fleets such as NZA Services LLC and Emmanuel Basurto Huijara with 4 citations each over the all-time period, followed by several carriers with 3 citations. These numbers are small relative to total carrier populations, which suggests that 392.15 citations are distributed across many different operators rather than concentrated in a few large fleets.
How severe is this compared to similar codes
392.15 is categorized as an Unsafe Driving violation. The closest peer code is 392.2 (Operating a CMV while ill or fatigued), which has accumulated 1,208,164 citations over its lifetime but carries only a 0.8% OOS rate. Several variants of 392.2 show similarly low OOS rates: 392.2-SLLSR at 0.1% OOS, 392.2RG at 0.1%, and 392.2-SLLTCD at 0.0%.
The contrast is stark. A driver cited for fatigue or illness might continue operating in most cases, but a Clearinghouse prohibition results in out-of-service enforcement in 98.7% of citations. This reflects the irreversible nature of the violation: the Clearinghouse is a legal database, not an inspector's subjective assessment. If your name is there, you cannot legally drive, period.
How to avoid it
The root cause of 392.15 citations is prior involvement with drug or alcohol testing—a positive result, a failed test, or a refusal to test, all of which trigger entry into the Clearinghouse. Avoidance requires strict adherence to substance-free operation before and during your commercial driving career.
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Know your status before you roll. Before applying for a job or accepting a dispatch, verify your Clearinghouse record yourself. The Federal Motor Carrier Safety Administration (FMCSA) operates a public portal at clearinghouse.fmcsa.dot.gov. If you have any history of testing, positive results, or Return-to-Duty compliance, confirm your eligibility proactively.
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Comply fully with pre-employment and random testing. Our inspection records show that 383.23A2-LCDLN (operating without a valid CDL) co-occurs with 392.15 in 32 of the last 90 days' inspections, indicating that drivers in vulnerable circumstances (missing valid credentials) are also disproportionately at risk for Clearinghouse violations. Maintain all required certifications and participate transparently in all testing programs your employer administers.
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Complete Return-to-Duty if required. If you have tested positive or refused a test in the past, the only legal pathway back to commercial driving is completion of the DOT's Return-to-Duty program: evaluation by a substance abuse professional, any required treatment, a negative return-to-duty test, and ongoing follow-up testing for up to three years. No shortcut exists.
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Maintain medical certification and valid licensing. Our data shows 391.41APC (operating without a valid medical certificate) co-occurs in 23 shared inspections with 392.15 in the last 90 days. Drivers operating outside full regulatory compliance create exposure across multiple violation categories. Keep your medical certificate current and your CDL valid.
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Understand that this is enforced uniformly across all states and carriers. The Clearinghouse is federal. Every state and every inspector applies the same standard: if your name appears in the database, you will be placed out of service. There is no regional variation, no discretion, and no flexibility.