393.201C Citation: Frame Rail Damage – What Drivers Need to Know

No. Out of every 100 citations for frame rail flange damage, only 1 results in an out-of-service order. Across our inspection records, the OOS rate for 393.201C is 1.4%—meaning 1,165 trucks were allowed to continue driving while 16 were placed out of service. This is significantly lower than the all-FMCSR average OOS rate of 31.4%, which tells you this violation is treated as a minor defect in enforcement.

No, it ranks much lower in severity than similar vehicle maintenance codes. The national rank for this violation is #674 out of 3,036 FMCSR codes by citation volume. Compare the OOS rates: inoperable lamps (393.9) carry a 6.9% OOS rate, while lighting/reflectors (393.11) hit 1.8%. Frame rail flange damage at 1.4% OOS puts it in the least-enforced-as-critical tier. The data shows inspectors cite it but rarely ground vehicles.

1. Get a pre-trip inspection — we see frame rail citations often paired with other defects: inoperable lamps (393.9) in 53 shared inspections, fuel system leaks (396.5B) in 40, and window obstructions (393.60C) in 34 over the last 90 days.
2. Schedule frame rail repair at a DOT-certified shop—this requires manufacturer-approved work only.
3. Check your lights, fuel system, and emergency equipment before rolling again.
4. Document the repair with an invoice showing the work was done to spec.
5. Request a re-inspection if required by your state or carrier.

Citations are trending upward. Last 12 months, we recorded 865 citations total—192 in just the last 90 days. The highest month was October 2025 with 119 citations. The trend shows a rise from April 2025 (16 citations) through mid-2025, stabilizing above 70/month from November onward. This suggests either increased inspection focus on frame condition or a seasonal pattern in frame damage reporting.

Texas dominates by far. Over the last 180 days, Texas accounts for 426 citations—virtually the entire state volume for this code. Illinois follows distantly with 9 citations, and New Mexico with 2. Across our 13 million inspection records, the geographic concentration in Texas is striking, suggesting either higher traffic volume, more aggressive frame inspections, or a fleet composition issue in that state.

Not urgent from an immediate out-of-service perspective, but fix it before your next inspection. The 1.4% OOS rate means most drivers get a citation-and-go. However, 90-day citation volume is 192 and rising, and co-occurring violations in the same inspections include critical defects like brake system failures (393.41 in 29 shared inspections) and fuel leaks (396.5B in 40). Don't let frame damage slide—it often appears alongside safety-critical failures.

Ford dominates with 402 all-time citations for this violation. Dodge follows with 170, and RAM with 121. These pickup-truck and light-duty chassis represent over 60% of all 393.201C citations. Heavy trucks like Freightliner (102) and Chevrolet (102) split the remainder. If you drive a Ford or Dodge, inspect your frame flanges closely—the data shows these makes are cited frequently for this defect.

Yes, you can contest it through the DataQs Roadside Inspection Dispute (RDR) process. Frame rail damage is a physical equipment finding, so your appeal must include photographic evidence or a certified inspection report showing the flange was not improperly bent, cut, or notched—or that any modification was performed by the vehicle manufacturer. Gather repair records, OEM documentation, and a pre-citation photo if possible. Submit within the RDR filing window (typically 90 days from citation).