Annex OrbisFMCSA · SAFETY STATISTICS
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.
Recorded violations13,571,170
Out-of-service violations2,411,961
Violation codes2,379
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 |
|---|---|---|---|---|
| 393.19 | Inoperative/Defective Hazard Warning Lamp | 69 | 30,052 | 0.0% |
| 393.28-BMG | Buses - Electrical cable missing/damaged protective grommets | 69 | 74 | 0.0% |
| 396.3A1-BECI | Buses - Electrical components have broken or unsecured mounting | 69 | 144 | 0.0% |
| 393.102A1I | Insufficient means to prevent forward movement | 67 | 117 | 0.0% |
| 396.5A | Failing to ensure that vehicle is properly lubricated | 67 | 3,356 | 0.0% |
| 396.7A-LT | Solid item lodged between dual tires | 67 | 68 | 0.0% |
| 395.30B1 | Driver failed to certify the accuracy of the information gathered by the ELD | 66 | 20,400 | 0.0% |
| 396.3A1DSDT | Drive Shaft Tube Cracked or Twisted | 66 | 66 | 0.0% |
| 173.33A | Cargo tank general requirements | 65 | 72 | 0.0% |
| 177.801HMBPTA | HM (Bulk Packages) - Transporting or accept for transportation HM/DG in a bulk package/large means of containment not authorized/selected for the material being t | 65 | 72 | 0.0% |
| 392.2MI | Miscellaneous Traffic Law Violation | 65 | 22,094 | 0.0% |
| 393.70 | Fifth wheel | 65 | 429 | 0.0% |
| 393.70B2-ENGAGED | Kingpin not properly engaged | 65 | 68 | 0.0% |
| 393.201B-FR | Frame - Cab or body mounts loose/broken/missing | 64 | 10,430 | 0.0% |
| 393.48A-BSRFS | Brakes - Severe rusting of brake rotor (disc) | 64 | 279 | 0.0% |
| 393.52A1 | Insufficient Braking Force as a Percentage of Gross Vehicle Weight or Gross Combination Weight | 64 | 69 | 0.0% |
| 396.3A1-BACM | Air Brake - Air compressor mounting brackets/braces/adapters cracked/broken | 64 | 68 | 0.0% |
| 393.102A | Improper securement system (tiedown assemblies) | 63 | 152 | 0.0% |
| 393.118B-CDL | Dressed Lumber/Similar Building Products - Improper positioning of bundles. | 63 | 64 | 0.0% |
| 395.8F1-HOSM | HOS (Manner) - Driver's record of duty status not current to the time shown for last change of duty status. Date and Time: | 63 | 5,541 | 0.0% |
| 172.504A-HMPS | HM (Placarding) - Bulk package/freight container/unit load device/transport vehicle not placarded as required. | 62 | 632 | 0.0% |
| 173.24C | Packaging not authorized by the Hazardous Materials Regulations | 62 | 109 | 0.0% |
| 391.41A-P | Operating a passenger-carrying vehicle without possessing a valid medical certificate. | 62 | 91 | 0.0% |
| 392.2UCR | Failure to pay UCR Fee | 62 | 15,230 | 0.0% |
| 392.5A2-POS | Driver having possession of alcohol while on duty, or operating, or in physical control of a CMV | 62 | 63 | 0.0% |
| 393.47A-RM | Brake rotor or drum - piece missing or in danger of falling away | 62 | 73 | 0.0% |
| 395.3B1-HOSPD | HOS (Property) - Driving after being on duty more than 60 hours in the previous 7 consecutive days. Date TIME | 62 | 224 | 0.0% |
| 396.3A1-AABRCW | The sliding suspension attachment member (undercarriage body rail) on either side exhibits a crack of any length in more than 50% of its attachment welds. | 62 | 73 | 0.0% |
| 387.7B3III | Carrier - Mexican domiciled motor carrier permit/require a driver to operate a CMV in the commercial zone without insurance identification document in the vehicle | 61 | 646 | 0.0% |
| 392.9BA-NOREG | Operating a commercial motor vehicle with no USDOT number when required | 61 | 1,500 | 0.0% |
| 393.28 | Improper or no wiring protection as required | 61 | 4,663 | 0.0% |
| 393.43D-BIPBS | Brake - Inoperative or missing trailer Spring Brake | 61 | 2,155 | 0.0% |
| 393.203 | Cab/body parts requirements violations | 60 | 2,651 | 0.0% |
| 393.70C-CDTDC | Coupling - Full Trailer, drawbar cracked | 59 | 67 | 0.0% |
| 396.3A1-BACL | Air Brake - Air compressor mounting bolts loose. | 59 | 89 | 0.0% |
| 387.303B4 | No copy of certificate of registration | 58 | 4,139 | 0.0% |
| 392.2IRP | IRP Apportioned Tag or Registration Violation | 58 | 20,865 | 0.0% |
| 392.9BA-NOREGINTRA | Operating a commercial motor vehicle in intrastate commerce with no USDOT number when required. | 58 | 960 | 0.0% |
| 393.60C | Windshield - Damaged or Discolored | 58 | 125,376 | 0.0% |
| 395.34A1 | Failing to note malfunction that requires use of paper log | 58 | 1,727 | 0.0% |
| 393.75A2-TFBB-6 | Tires - Front, Any tire with observable bumps, bulge or knots | 56 | 166 | 0.0% |
| 383.23A2-DT | Operating a CMV without a valid CDL: No double- or triple-trailer endorsement | 55 | 56 | 0.0% |
| 383.71H | License (CDL) - CDL or CLP holder possesses a valid medical certificate but is not on file with the issuing state driver's licensing agency as required | 55 | 7,417 | 0.0% |
| 393.70B1I-CDCW-M20 | Coupling - More than 20% of the total original welds are cracked on either side of the vehicle. | 55 | 57 | 0.0% |
| 393.124C-CCP | Concrete Pipe - Improper blocking | 54 | 56 | 0.0% |
| 393.42A-BM-TSA | Brake - Missing on a trailer steering axle | 54 | 57 | 0.0% |
| 396.3A1-CDFWC-MT20 | Coupling - Fifth wheel plate is cracked more than 20% of the distance across the metal in the direction of the crack | 53 | 57 | 0.0% |
| 385.111C2-OOSO | OOS Order - Motor carrier operating a CMV while an existing out-of-service order is in effect: MX Carrier - Revoked Operating Authority | 52 | 54 | 0.0% |
| 393.70C-CDHSMSCM | Full Trailer - Cracks anywhere in the hitch system, including mounting surface and frame cross member | 52 | 56 | 0.0% |
| 393.71H | Towbar requirement violations | 52 | 74 | 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 ↗