FMCSR 392.2-INAT: Fatigued/Ill Driving — Drivers' Top Questions

No — almost certainly not. Across all 7,877 all-time citations for 392.2-INAT in our inspection records, only 3 drivers were placed out of service, producing an effective OOS rate of 0.0%. Compare that to the all-FMCSR average of 31.4% and it's clear this code almost never results in an immediate roadside shutdown. That said, "almost never" is not "never" — inspectors retain discretion if they believe the impairment is severe enough to pose an immediate safety threat. Your truck stays rolling in virtually every documented case, but the citation still hits your CSA record.

392.2-INAT carries a severity weight of 8 — one of the higher scores on the CSA scale. The actual points that post to your Unsafe Driving BASIC are multiplied based on how recently the violation occurred: violations in the last 6 months receive a 3× time-weight multiplier, dropping to 2× between 6–12 months, and 1× after that. So a fresh 392.2-INAT citation effectively registers as 24 weighted points during the first six months. Because this falls in the Unsafe Driving BASIC — one of the most scrutinized by FMCSA — even a single citation can visibly move a carrier's percentile, especially for smaller fleets.

Act on your paperwork and logs immediately. Our inspection records show that in the last 90 days, 392.2-INAT most frequently appears alongside these violations on the same inspection:

• 392.2-SLLML (106 shared inspections) — review your lane-change and driving behavior documentation
• 395.24 (82 shared inspections) — check your ELD form and manner compliance
• 396.17C-PI (80 shared inspections) — confirm your periodic inspection proof is on file
• 395.8E-HOSPD (58 shared inspections) — audit your duty status records for any discrepancies
• 391.41APC (54 shared inspections) — verify your medical certificate is current and in possession

Address every co-cited violation before your next dispatch. A cluster of violations on one inspection compounds your CSA exposure significantly.

It's a mid-volume variant with a near-zero OOS rate, but the severity weight is high. At 7,877 all-time citations, 392.2-INAT ranks #259 out of 3,036 FMCSR codes by citation volume — firmly in enforcement focus. Among peer codes in the same category, the parent code 392.2 has accumulated 1,208,164 citations with a 0.8% OOS rate, while 392.2-SLLEQP carries a 2.4% OOS rate. By contrast, 392.2-INAT's 0.0% OOS rate suggests inspectors use it primarily as a behavioral notation rather than a shutdown trigger — but its severity weight of 8 means the CSA scoring impact is identical to more equipment-focused variants.

Yes, you can submit a challenge through FMCSA's DataQs system, which handles Requests for Data Review (RDR). Because 392.2-INAT is a judgment-based, officer-observed violation rather than a measurable equipment defect, successful challenges typically hinge on documentation that contradicts the officer's determination — for example, ELD data showing compliant hours, a physician's note ruling out illness at the time, or evidence that the inspection record contains factual errors (wrong driver, wrong vehicle). Our records show ELD and duty-status violations co-occurring frequently alongside this code, so if those companion violations are inaccurate, challenging them in the same RDR can strengthen your overall case.

Georgia is by far the heaviest enforcement state. In the last 180 days, our inspection records show Georgia issued 1,196 citations for 392.2-INAT — more than five times the next-highest state. Arizona came in second with 217 citations, followed by Arkansas with 108. Colorado (98) and Pennsylvania (96) round out the top five. Every one of those citations resulted in zero OOS placements, consistent with the code's 0.0% national OOS rate. If your routes run through the Southeast or the Southwest corridors, expect heightened scrutiny for this specific code.

Treat it as urgent — citation volume has been climbing steadily. Our inspection records show 392.2-INAT generated 5,216 citations in just the last 12 months, compared to 7,877 total all-time, meaning the vast majority of enforcement activity is recent. Monthly volume has held consistently above 400 citations since May 2025, peaking at 528 in March 2026. The last 90 days alone account for 1,159 citations. That trajectory indicates enforcement of this code is accelerating, not fading. CSA points from a citation issued today carry a 3× time-weight multiplier for the next six months, so every month you delay addressing root-cause fatigue or illness policies costs your safety score more.

It follows both. Under FMCSA's CSA methodology, Unsafe Driving BASIC violations — the category 392.2-INAT sits in — are attributed to the carrier for SMS percentile scoring. However, the inspection event is permanently tied to your CDL number in the inspection record. If you change carriers, your inspection history moves with you and factors into any new employer's safety profile once they run a pre-employment screening. For fleet managers, this means a driver with a pattern of 392.2-INAT citations represents measurable, portable risk before they ever turn a wheel under your DOT number.