What puts trucks and drivers out of service?
The most frequent out-of-service violations in our indexed FMCSA inspection records, ranked by violation code.
All violation codes
Highest OOS count first. Codes with no recorded OOS occurrences appear last.
| Violation code | Description | OOS occurrences | All occurrences | Share of all OOS |
|---|---|---|---|---|
| 390.21H2 | IEP offering/interchanging intermodal equipment not identified as required. | 0 | 1 | 0.0% |
| 390.21H3 | IEP failing to mark/identify equipment with "USDOT" Number as required. | 0 | 7 | 0.0% |
| 390.21TB3-OPERBY | Operating a CMV without the words Operated By when required | 0 | 3,311 | 0.0% |
| 390.21TC-MC | Required CMV marking(s) not legible from 50 feet while stationary due to improper size/location/color | 0 | 15,323 | 0.0% |
| 390.21TE-LCMVINFO | Leased CMV - Failing to have the required information on the rental agreement when the lease is not more than 30 days. | 0 | 4,902 | 0.0% |
| 390.21TF | Drive-Away Service failing to mark vehicle with Legal Name or Trade Name, and/or USDOT Number | 0 | 192 | 0.0% |
| 390.21TG2 | Intermodal Equipment Provider - Failing to identify the intermodal equipment provider. | 0 | 51 | 0.0% |
| 390.21TG2-IEP | Intermodal Equipment Provider - Failing to identify the intermodal equipment provider. | 0 | 87 | 0.0% |
| 390.21TG3 | Intermodal Equipment Provider - Failing to mark/identify equipment with USDOT as required. | 0 | 421 | 0.0% |
| 390.21TG3-IEP | Intermodal Equipment Provider - Failing to mark/identify equipment with USDOT as required. | 0 | 443 | 0.0% |
| 390.21TG4I -IEPIDM | Intermodal Equipment Provider - Improper identification marking. | 0 | 151 | 0.0% |
| 390.21TG4I-IEPIDM | Intermodal Equipment Provider - Improper identification marking. | 0 | 87 | 0.0% |
| 390.3E2-D | Driver - Fail to comply with applicable regulations of this subchapter | 0 | 16 | 0.0% |
| 390.403A1I | Failing to perform or adhere to the provisions of a lease | 0 | 4 | 0.0% |
| 390.403A2 | During an emergency situation, failing to produce on demand, a signed statement as required when postponing the preparation of a lease or interchange agreement | 0 | 1 | 0.0% |
| 390.403B1 | Using a lease or interchange agreement that fails to include the vehicle identification information as required | 0 | 18 | 0.0% |
| 390.403B2 | Using a lease or interchange agreement that fails to include the information required for both parties | 0 | 41 | 0.0% |
| 390.403B3 | Using a lease or interchange agreement that fails to include the specific duration of the arrangement as required | 0 | 12 | 0.0% |
| 390.403B4 | Using a lease or interchange agreement that fails to include the statement of exclusive possession, control, and use of the vehicle as required | 0 | 1 | 0.0% |
| 390.403C | Failing to carry a copy of the lease or interchange agreement on board a leased or interchanged passenger-carrying commercial motor vehicle1 | 0 | 77 | 0.0% |
| 391.11B3-Q | Qualifications - Operating a CMV without proper training/experience | 0 | 205 | 0.0% |
| 391.45F | Medical (Certificate) - Operating a commercial motor vehicle when impaired by a physical or mental injury or disease discovered after current medical certificatio | 0 | 2 | 0.0% |
| 392.10A1 | Failure to stop at railroad crossing - Bus transporting passengers | 0 | 6 | 0.0% |
| 392.10A1-RRC | Railroad Crossing - Driver failed to stop at a railroad grade crossing - Bus | 0 | 19 | 0.0% |
| 392.10A3 | Failure to stop at railroad crossing - CMV requiring display of HM placards | 0 | 37 | 0.0% |
| 392.10A3-RRC | Railroad Crossing - Driver failed to stop at a railroad grade crossing - Hazmat Placard Vehicle | 0 | 96 | 0.0% |
| 392.10A4 | Failure to stop at railroad crossing - HM Cargo Tank vehicle | 0 | 42 | 0.0% |
| 392.10A4-RRC | Railroad Crossing - Driver failed to stop at a railroad grade crossing - Hazmat Cargo Tank | 0 | 78 | 0.0% |
| 392.10A5-RRC | Railroad Crossing - Driver failed to stop at a railroad grade crossing - Hazmat Elevated Temperature Cargo Tank | 0 | 2 | 0.0% |
| 392.11 | Commercial Vehicle failing to slow down approaching a railroad crossing | 0 | 17 | 0.0% |
| 392.11-RRC | Railroad Crossing - Driver failed to stop/due care at a railroad grade crossing | 0 | 37 | 0.0% |
| 392.12-RRCC | Railroad Crossing - Driver failed to have sufficient space to drive completely through crossing without stopping. | 0 | 15 | 0.0% |
| 392.16B-CPASS | Co-Driver - Failed to use seat belt while riding in a property-carrying CMV. | 0 | 1,540 | 0.0% |
| 392.16B-DPASS | Driver - Failed to require passenger(s) (not a co-driver) to use seat belt while operating a property-carrying CMV. | 0 | 7,618 | 0.0% |
| 392.16-D | Driver - Failed to use seat belt while operating a CMV | 0 | 74,914 | 0.0% |
| 392.201BI-MC | Carrier - Motor carrier failing to file Unified Registration System online application with FMCSA. | 0 | 172 | 0.0% |
| 392.22A | Failing to use hazard warning flashers | 0 | 3,894 | 0.0% |
| 392.22B | Failure to place or improper placement of warning devices on the road surface | 0 | 4,704 | 0.0% |
| 392.22B-DFPWD | Driver - Failed to place warning devices on the road surface | 0 | 10,233 | 0.0% |
| 392.22B-DIPWD | Driver - Improper placement of warning devices on the road surface | 0 | 335 | 0.0% |
| 392.24-ESFP | Driver - No driver shall attach or permit any person to attach a lighted fusee or other flame-producing emergency signal to any part of a commercial motor vehicle | 0 | 1 | 0.0% |
| 392.25-FPDCG | Driver - No driver shall use or permit the use of any flame-producing emergency signal for protecting any commercial motor vehicle using compressed gas as a motor | 0 | 1 | 0.0% |
| 392.25-FPDCT | Driver - No driver shall use or permit the use of any flame-producing emergency signal for protecting any cargo tank motor vehicle used for the transportation of | 0 | 1 | 0.0% |
| 392.2DFYPD | Driver - Failing to yield to pedestrian/bicyclist | 0 | 27 | 0.0% |
| 392.2DH | Headlamps - Failing to dim when required | 0 | 152 | 0.0% |
| 392.2DIB | Driver - Improper backing | 0 | 566 | 0.0% |
| 392.2-DMOVE | Driver - Move over/slow law - Failure to yield right of way to authorized emergency vehicles | 0 | 2,242 | 0.0% |
| 392.2DUTIS | Driver - U-turn on interstate | 0 | 116 | 0.0% |
| 392.2PK | Unlawfully parking and/or leaving vehicle in the roadway | 0 | 5,744 | 0.0% |
| 392.2R | Reckless driving | 0 | 270 | 0.0% |
How to read this report
Each indexed violation identity counts once. Only a violation explicitly marked out of service contributes to the OOS count. Repeated copies are counted once; conflicting code or OOS values are excluded. Unknown flags remain in all occurrences but not in the OOS count. Missing codes appear as “Code not reported”.
These are violation counts, not unique inspections, trucks, drivers, or carrier-wide out-of-service orders. Coverage describes the currently indexed inspection dataset, not all historical FMCSA records. Frequencies do not establish crash causation or a carrier’s safety rating.
Unknown OOS flags: 112 · Conflicting records excluded: 0
FMCSA source data ↗