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 |
|---|---|---|---|---|
| 178.345-6 | DOT 406 /407/412 supports and anchoring | 30 | 303 | 0.0% |
| 386.83A1-OOSOPC | OOS Order - Motor carrier operating a CMV while an existing out-of-service order is in effect: Failure to pay fine - Private Carrier | 30 | 30 | 0.0% |
| 392.5A1 | Driver consuming an intoxicating beverage within 4 hours before operating a motor vehicle | 30 | 30 | 0.0% |
| 393.203E | Cab front bumper missing/unsecured/protrude | 30 | 5,978 | 0.0% |
| 393.207C-SLSS | Suspension - Leaf spring shifted | 30 | 726 | 0.0% |
| 393.47A-BCLMHE-SA | Hydraulic / Electric Brake - Cracked / loose / missing lining or pad on a steering axle | 30 | 32 | 0.0% |
| 395.3B2-NOM | Driving after 70 hours on duty in a 8 day period. (Property carrying vehicle) - Nominal Violation | 30 | 52 | 0.0% |
| 396.3A1-CDTHSW | Coupling - Semi-Trailer, pintle hook has more than 20% wear in the horn section | 30 | 30 | 0.0% |
| 396.3A1-DLDSUJRCM | Driveline/Driveshaft - Any bearing cap retainer clip is missing | 30 | 31 | 0.0% |
| 177.840G | Discharge valve not closed during transportation of Class 2 hazardous materials | 29 | 39 | 0.0% |
| 385.111C1-OOSO | OOS Order - Motor carrier operating a CMV while an existing out-of-service order is in effect: MX Carrier - Suspended Operating Authority for UNSAT Rating or Fail | 29 | 31 | 0.0% |
| 392.9BA-NOREGINTER | Operating a commercial motor vehicle with no USDOT number when required. | 29 | 2,152 | 0.0% |
| 393.120E-CDL | Metal Coils - Improper securement of coils in a sided vehicle without anchor points | 29 | 29 | 0.0% |
| 393.201B | Bolts securing cab broken/loose/missing | 29 | 1,518 | 0.0% |
| 393.25E | Lamp not steady burning | 29 | 1,548 | 0.0% |
| 393.71H-CDPHF | Coupling - Driveaway, pintle hook loose/missing fasteners | 29 | 30 | 0.0% |
| 393.83H | Exhaust - Not securely fastened to the vehicle | 29 | 3,591 | 0.0% |
| 393.9A-LHLI | Lighting - Headlamp(s) - Any inoperative | 29 | 68,763 | 0.0% |
| 396.3A1-FCLLS | Fuel - CNG or LPG leak detected visibly, audibly or by smell - Verified by bubble test or more than 5,000 ppm. | 29 | 30 | 0.0% |
| 172.202A1 | No or improper Identification Number | 28 | 291 | 0.0% |
| 385.111A-OOSO | OOS Order - Motor carrier operating a CMV while an existing out-of-service order is in effect: MX Carrier - UNSAT/UNFIT | 28 | 30 | 0.0% |
| 393.102A1III | Insufficient means to prevent lateral movement | 28 | 79 | 0.0% |
| 393.116D2 | Insufficient tiedowns for shortwood loaded crosswise | 28 | 28 | 0.0% |
| 393.120B1 | Improper securement of metal coils transported vertically | 28 | 28 | 0.0% |
| 393.120C1 | Improper securement of metal coils transported with eyes crosswise | 28 | 28 | 0.0% |
| 393.120D1 | Improper securement of metal coil transported with eye lengthwise | 28 | 29 | 0.0% |
| 396.3A1-DLDSDSC | Driveline/Driveshaft - Any original metal crack in the shaft tube greater than 1/4 inch (6.4 mm) in length. | 28 | 29 | 0.0% |
| 172.514B | Bulk package with residue of HM not properly placarded | 27 | 51 | 0.0% |
| 383.51A | Driving a CMV while disqualified from holding a CDL | 27 | 27 | 0.0% |
| 393.122 | No/improper securement of paper rolls | 27 | 33 | 0.0% |
| 393.205A-WRSWWC | Wheel/Rim - Spoke wheel has two or more web areas cracked | 27 | 29 | 0.0% |
| 395.3A3II | Driving beyond 8 hour driving limit since the end of the last on duty, off duty, or sleeper period of at least 30 minutes | 27 | 17,949 | 0.0% |
| 396.3A1-ALATR | Air Brake - Any leak from an air tank reservoir. | 27 | 5,189 | 0.0% |
| 177.823A-HMPMCM | HM (Placarding) - A carrier may not move a transport vehicle containing a hazardous material unless the vehicle is marked and placarded in accordance with part 17 | 26 | 1,434 | 0.0% |
| 177.848D-HMC | HM (Cargo) - Operate a motor vehicle transporting incompatible commodities. (Other than Class 1). | 26 | 26 | 0.0% |
| 393.11A1-LRLM | Lighting - Tail lamp - Any missing | 26 | 2,676 | 0.0% |
| 393.203C-CBP | Cab and Body Parts - Hood not securely fastened | 26 | 14,626 | 0.0% |
| 393.70B1I-CDFWFMI-LT20 | Coupling - 20% or less of the fifth wheel fasteners on either side missing/ineffective | 26 | 2,066 | 0.0% |
| 393.70B1II-FWCM | Fifth wheel - any movement between components | 26 | 43 | 0.0% |
| 393.71 | Improper coupling driveaway/towaway operation | 26 | 42 | 0.0% |
| 393.71H-CDHSMSCM | Driveaway - Cracks anywhere in the hitch system, including mounting surface and frame cross member | 26 | 30 | 0.0% |
| 177.840 | Improper transportation of Class 2 hazardous materials | 25 | 30 | 0.0% |
| 391.49JCOMPLY | Operating a commercial motor vehicle without complying with the requirements indicated on the skill performance evaluation | 25 | 28 | 0.0% |
| 393.207D | Coil spring cracked and/or broken | 25 | 36 | 0.0% |
| 393.70B1I-CDPB-M20 | Coupling - Mounting plate or pivot bracket has more than 20% of the total original welds are cracked on either side of the vehicle. | 25 | 25 | 0.0% |
| 393.70B1I-CDSM | Coupling - Slide and slide base has more than 3/8 inch movement between components. | 25 | 25 | 0.0% |
| 393.70C-CDTMLFB | Coupling - Turntable mounting, bottom flange has less than six effective bolts | 25 | 28 | 0.0% |
| 393.91-BASIW | Buses - Equipped with aisle seats not designed and installed to automatically fold and leave a clear aisle when they are unoccupied | 25 | 27 | 0.0% |
| 393.91-SNS | Motor Coach or other Passenger Carrying vehicle operating with seating, occupied or not, not secured in a workmanlike manner | 25 | 43 | 0.0% |
| 396.3A1-BACP | Air Brake - Air compressor cracked/broken/loose pulley | 25 | 26 | 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 ↗