What 392.2-ERDRV means in plain language
FMCSR 392.2-ERDRV addresses erratic or careless operation of a commercial motor vehicle. Law enforcement issues this citation when they observe driving behavior that deviates from safe, predictable vehicle control—swerving between lanes without clear purpose, sudden speed changes without traffic justification, failing to maintain proper lane position, or other patterns that suggest inattention or recklessness behind the wheel.
This is distinct from violations tied to specific mechanical failures, distraction, or drowsiness. The focus is on how you operate the vehicle itself—your steering, acceleration, and braking inputs as witnessed in real time. A trooper or roadside inspector documents the behavior they see and issues the citation based on that observation.
What our enforcement data actually shows
Across our 13 million+ inspection records, 392.2-ERDRV remains exceptionally rare in enforcement. Our database shows zero citations for this code in the last 90 days, zero in the last 12 months, and zero all-time. With zero out-of-service placements recorded, the out-of-service rate stands at 0.0%.
This does not mean the code is invalid or unused; rather, it reflects that law enforcement encounters erratic driving behavior infrequently enough that formal citation under this specific code designation is statistically negligible in the roadside inspection data we collect. If you have received a 392.2-ERDRV citation, you are part of an extremely small group.
Who gets cited most
Given zero all-time citations in our records, there are no state or carrier patterns to report. The enforcement volume is too low to identify geographic or fleet concentration.
How severe is this compared to similar codes
Within the Unsafe Driving category, 392.2-ERDRV sits alongside codes that address impaired or fatigued operation. For context, the broader 392.2 code (operating a CMV while ill or fatigued) accounts for 1,208,164 citations in our database with a 0.8% out-of-service rate. The variant 392.2-SLLSR shows 191,232 citations at a 0.1% OOS rate, and 392.2RG shows 96,652 citations at 0.1% OOS.
These peer codes are issued at vastly higher frequency, suggesting that when inspectors observe unsafe operation, they more commonly cite fatigue or illness as the root cause rather than erratic driving standing alone. The CSA severity weight for 392.2-ERDRV is 6, placing it in the moderate-to-serious range for driver-conduct violations.
How to avoid it
Since 392.2-ERDRV focuses on observable vehicle control, prevention centers on maintaining smooth, intentional operation:
-
Maintain steady lane position. Before and during every shift, be aware of your lane markings and center your vehicle deliberately. Avoid drifting or weaving, especially in light traffic where it becomes conspicuous.
-
Smooth throttle and brake inputs. Accelerate and decelerate gradually. Sudden speed changes without traffic-based reason are a hallmark of observed erratic behavior. Practice predictable, anticipatory driving.
-
Pre-trip vehicle familiarity. Know your truck's steering responsiveness, braking feel, and weight distribution. A vehicle that pulls to one side, has loose steering, or uneven brake response can appear to be driven erratically even when you're correcting for mechanical issues. Address these in your pre-trip inspection.
-
Manage fatigue proactively. Although 392.2-ERDRV is distinct from fatigue codes, drowsiness manifests as weaving, hesitation, and loss of lane control. Keep your rest compliant with HOS rules, pull over if you feel impaired, and never rely on coffee alone.
-
Minimize distractions during operation. Phones, eating, adjusting controls, or looking away from the road are invisible to an inspector until they result in swerving or other erratic corrections. Establish a pre-drive routine so phones are silenced, mirrors are set, and climate controls are configured before you move.
-
Know your vehicle's limits in bad conditions. Rain, wind, or snow exaggerate small steering inputs. Reduce speed and use wider, shallower turns to maintain smooth control. What looks erratic in adverse weather is often a driver oversteering a heavy vehicle in conditions they didn't adjust for.