What 392.5A2-IP means in plain language
This regulation prohibits you from consuming alcohol, being under the influence of alcohol, or having any measurable or detectable alcohol concentration while operating a commercial motor vehicle. The rule is absolute—there is no permissible threshold for "a little bit" of alcohol. If an officer detects any alcohol presence or you register any concentration on a breath test, you are in violation.
The violation applies while you are on duty, in control of the vehicle, or actively driving. This means you cannot have alcohol in your system before you get behind the wheel, and you cannot consume alcohol during your shift, even if you're parked.
What our enforcement data actually shows
Across our 13 million+ inspection records, FMCSR 392.5A2-IP carries one of the harshest enforcement consequences in the industry. The out-of-service rate for this code is 99.0%—meaning 684 of 691 all-time citations resulted in immediate removal from service. By contrast, the all-FMCSR average out-of-service rate is 31.4%, so this violation is approximately 3 times more likely to land you out of service on the spot.
In the last 12 months, inspectors cited drivers 407 times for 392.5A2-IP. Over the most recent 90 days, we recorded 77 citations. The monthly trend shows citation volume fluctuating between 1 and 50 citations per month, with peaks in May 2025 (41 citations) and August 2025 (50 citations).
Who gets cited most
Our inspection records show that Georgia, Missouri, and Minnesota lead in citation frequency over the last 180 days. Georgia recorded 16 citations with a 100.0% out-of-service rate. Missouri had 13 citations, also at 100.0%, and Minnesota reported 12 citations, again at 100.0%. California and New York also appear in the top five, each with 11–12 citations and identical out-of-service rates.
The geographic consistency is striking: in every top state, the OOS rate remains at or near 100%. There is no meaningful variation that would suggest enforcement leniency in any region. Among carriers, our data shows fleets such as Federal Express Corporation with 7 citations and J B Hunt Transport Inc with 4 citations, but this reflects exposure and volume rather than relative safety performance.
How severe is this compared to similar codes
In the Controlled Substances/Alcohol category, 392.5A2-IP sits among the most aggressively enforced violations. The similar code 392.5(a)(2) – BAC 0.04+ has 778 citations and a 99.2% out-of-service rate, nearly identical to 392.5A2-IP's 99.0% rate. The code 392.5A3-IDUI – which covers possession of an intoxicating beverage while on duty – has logged 1,478 citations with a 96.8% OOS rate.
For comparison, the broader category includes codes like 392.4A-DOSP (Use of drugs) with 3,947 citations and a 95.9% out-of-service rate. Despite the much higher citation volume, that code's OOS rate is lower than 392.5A2-IP. This underscores that alcohol-related violations are treated with exceptional severity in enforcement.
How to avoid it
The fundamental step is simple: do not consume alcohol before or during your shift, and ensure no alcohol is present in your system when you operate. Here are concrete actions:
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Plan your schedule around alcohol consumption. If you drink off-duty, allow adequate time—typically at least 12 hours—before you are on duty. Metabolism varies by individual; do not rely on time alone if you are uncertain.
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Never keep open or sealed alcohol in your cab or sleeper. Our inspection data shows that 392.5A3-IDUI (possession of an intoxicating beverage) co-occurs with 392.5A2-IP in 22 inspections over the last 90 days. Even possession without consumption can trigger violations.
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Be aware of over-the-counter products and medications. Some cough syrups, mouthwashes, and cold remedies contain alcohol. Check labels before use, and consider non-alcoholic alternatives.
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If you are fatigued, do not self-medicate. Our data indicates that 392.2 (Operating a CMV while ill or fatigued) co-occurs with 392.5A2-IP in 32 inspections across the last 90 days. Drivers facing fatigue sometimes turn to alcohol or drugs; this compounds risk. Instead, take a break, rest, or find a safe location to stop.
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Understand that a single citation will place you out of service immediately. At a 99.0% OOS rate, this is not a warning or a fine—it is removal from the road. Your carrier will be notified, and your CSA record will reflect the violation.
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If you are cited, request a breath test and preserve evidence. Do not refuse testing, as refusal carries additional penalties. Document the time, location, and any medications or foods you consumed before the inspection.