387.403B Citation: What Happens Next?

No. Across our inspection records, 387.403B has never resulted in an out-of-service order—our data shows a 0.0% OOS rate across all 11 all-time citations. This is significantly lower than the all-FMCSR average OOS rate of 31.4%, making 387.403B a non-critical violation that inspectors do not use to remove vehicles from service.

387.403B ranks #2167 out of 3,036 FMCSR codes by citation volume, placing it well below the most-enforced violations. Its 0.0% OOS rate also compares favorably to peer administrative and general codes; for example, 390.21TB2-DOT and 390.21T(b) each have 0.0% OOS rates as well, but they see far higher citation counts (74,663 and 61,097 respectively). This suggests 387.403B is both infrequently cited and treated as a minor administrative matter.

First, request a copy of the inspection report and citation details. Our data shows 387.403B often appears alongside other violations in the same inspection—most commonly 387.403A, 395.8A-ELD (failing to keep records of duty status), and 387.301A/B. Check whether you received citations for those codes too, as they may require urgent attention. Second, contact your carrier's safety or compliance team to file any corrective actions or documentation needed to resolve the administrative matter.

Over the last 180 days, Illinois accounts for the vast majority of 387.403B citations in our database—6 out of the citations recorded in that period, all with a 0.0% OOS rate. Other states do cite this code, but at much lower volumes. If you operate primarily in or through Illinois, be aware of heightened enforcement attention to this violation.

Citation activity is sporadic. In the last 12 months, we recorded 8 total citations; in the last 90 days, 6 citations. Recent months show 2 citations in July 2025, 3 in February 2026, and 3 in March 2026. The low absolute volume makes month-to-month trends unreliable, but the 6 citations in 90 days suggests this violation is being enforced, albeit at a very low baseline frequency.

Yes, you can challenge a citation through the FMCSA's DataQs (Databas Query System) if you believe the inspection finding is factually incorrect or improperly recorded. DataQs is the formal channel for disputing roadside inspection records. Whether your dispute succeeds depends on the nature of the violation—documentation errors are often easier to correct than equipment defects. Consult your citation details and contact your carrier's compliance team or a transportation legal professional to evaluate your specific case.

KLM 20 LLC (USDOT 4459130) has the highest citation count at 2 all-time violations. The remaining citations are spread across smaller carriers with 1 citation each: Hirschbach Motor Lines LLC, Harmon Logistics LLC, GQ Line LLC, Acubed Freight LLC, Zivaan Trans Inc, Bullrun Transport LLC, Intt LLC, Hermann Forwarding Co, and MTMFO LLC. The distribution suggests no single carrier is disproportionately targeted for this violation.

In the last 90 days, 387.403B appeared alongside 387.403A in 6 inspections, and also co-occurred with 395.8A-ELD (failing to keep records of duty status) in 6 inspections. 387.301A and 387.301B each appeared together with 387.403B in 6 inspections as well. This clustering suggests that when 387.403B is cited, administrative and record-keeping violations often co-occur, so review your entire citation packet carefully and address all cited codes together.