What 392.10A3 means in plain language
FSMCR 392.10A3 applies specifically to commercial motor vehicles that are required to display hazardous materials (HM) placards. The violation occurs when a driver fails to come to a complete stop at a railroad grade crossing.
This rule exists because placarded vehicles carry dangerous cargo. A collision between a train and a hazmat truck can result in catastrophic environmental release, explosions, or fatalities. The regulation requires a full stop—not a rolling stop, not a slow creep—before proceeding across railroad tracks when your vehicle displays HM placards.
The distinction matters: standard CMVs have different crossing rules. This code specifically targets the subset of drivers hauling regulated hazardous materials, where the stakes are highest.
What our enforcement data actually shows
Across our database of 13 million+ roadside inspection records, we have documented 10 all-time citations for 392.10A3. In the last 12 months, enforcement officers issued 4 citations. Over the most recent 90 days, we recorded 0 citations.
None of the 10 drivers cited for this violation were placed out of service, resulting in a 0.0% out-of-service rate. This is substantially lower than the all-FMCSR average OOS rate of 31.4%, meaning inspectors have not found 392.10A3 violations serious enough to remove vehicles from service immediately.
392.10A3 ranks #2191 out of 3,036 FMCSR codes by citation volume, placing it in the lower range of enforcement priorities nationally. The low enforcement frequency does not mean the rule is unimportant—it likely reflects both driver compliance and the reality that most placarded vehicle operations involve crossing relatively few railroad tracks.
Who gets cited most
Our inspection records show citations for this violation concentrated in two states over the last 180 days. North Carolina recorded 1 citation with a 0.0% OOS rate, and Texas recorded 1 citation, also with a 0.0% OOS rate. Both jurisdictions treated the violation as non-emergency; no drivers were removed from service.
Historically, our data shows fleets such as Heritage FS Inc, Cochran Chemical Company Inc, and L M Asphalt Partners Inc each with 1 citation on record. This distribution—one citation per carrier—reflects the rarity of the violation rather than systemic issues at any one company.
How severe is this compared to similar codes
Both 392.10A3 and its peer codes fall under the Unsafe Driving category. The comparison highlights why this violation is uncommon:
392.2 (Operating a CMV while ill or fatigued) generated 1,208,164 citations with a 0.8% OOS rate. This is dramatically higher volume, reflecting the frequency with which fatigue and illness issues arise.
Another peer, 392.2-SLLEQP (Operating a CMV while ill or fatigued), recorded 72,352 citations with a 2.4% OOS rate—still orders of magnitude higher than 392.10A3's 10 all-time citations.
The gap underscores that railroad crossing violations involving placarded vehicles are rare events, probably because drivers hauling hazmat are typically more experienced, more closely supervised, and operate on routes with fewer active grade crossings.
How to avoid it
Before every shift:
- Review your route for railroad grade crossings. GPS and route-planning tools flag these intersections. Know where you will encounter them.
- Check weather and visibility conditions that might obscure warning lights or crossing gates.
At every railroad crossing:
- Bring your vehicle to a complete stop—wheels stationary—before the nearest rail. Do not roll through or creep across.
- Look and listen in both directions before proceeding. Train approach warnings are not always audible over engine noise.
- If crossing gates are down or lights are flashing, do not move forward. Wait until all signals clear and gates are fully raised.
In your pre-trip inspection:
- Verify brake system function. Hazmat drivers often operate older or heavier equipment; brake fade on long downgrades can make a complete stop at a crossing difficult. Test brakes on an upgrade before you need them in traffic.
- Confirm your placards are securely affixed and visible. Misplaced or missing placards can cause you to inadvertently operate under different crossing rules.
If you carry hazmat:
- Recognize that this rule applies to you specifically because your cargo is dangerous. Treat railroad crossings with extra caution, even on low-traffic roads where you might be tempted to roll through.
- Document any crossing encounters in your logbook if the stopping maneuver was extended; this creates a record if an inspector questions why you were in the crossing zone longer than expected.