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 |
|---|---|---|---|---|
| 392.9A2 | Failing to secure vehicle equipment | 9,113 | 9,509 | 0.38% |
| 393.134B-CRHLC | Roll-on/Roll-off/Hook Lift Containers - Improper securement of a roll-on/roll-off and hook lift container | 9,081 | 9,144 | 0.38% |
| 393.45B2UV | Brake Hose or Tubing Chafing and/or Kinking Under Vehicle | 8,421 | 112,283 | 0.35% |
| 395.8K2-HOSP | HOS (Property) - Failing to have in possession RODS for the previous seven consecutive days and available for inspection while on duty | 8,410 | 8,718 | 0.35% |
| 391.41B10-MC | Medical (Certificate) - Operating a commercial vehicle without corrective lenses or hearing aid as indicated on the driver's medical certificate | 8,342 | 8,547 | 0.35% |
| 393.128B-CLWV | Light Weight Vehicles - Improper securement of automobiles, light trucks, and vans | 8,253 | 8,299 | 0.34% |
| 392.9BA-INACTIVE | When required to have a USDOT number, operating a commercial motor vehicle with a de-activated or inactive USDOT number. | 8,231 | 8,852 | 0.34% |
| 391.11B4 | Medical (Certificate) - Operating a CDL (passenger or property carrying) vehicle that is non-excepted and the driver has self-certified as excepted interstate or | 8,056 | 8,548 | 0.33% |
| 393.110B | Insufficient tiedowns to prevent forward movement for load not blocked by headerboard, bulkhead, or other cargo | 7,773 | 7,968 | 0.32% |
| 393.75A1 | Tire-ply or belt material exposed | 7,461 | 24,745 | 0.31% |
| 393.48A | Inoperative/defective brakes | 7,301 | 60,286 | 0.3% |
| 393.207A-STCB | Suspension - Suspension connecting rod or tracking component assembly (including spring leaves used as a suspension connecting rod) or any part used for attaching | 7,236 | 7,616 | 0.3% |
| 396.5-HL | Hubs - Leaking hub | 7,081 | 9,851 | 0.29% |
| 393.100B | Leaking/spilling/blowing/falling cargo | 7,038 | 7,365 | 0.29% |
| 393.130C-CHVE | Heavy Vehicles/Equipment - Improper securement of heavy vehicles, equipment or machinery with crawler tracks or wheels | 6,995 | 7,036 | 0.29% |
| 383.51A-SIN | Driving a CMV while CDL is suspended for a safety-related or unknown reason and in state of driver's license issuance | 6,981 | 7,028 | 0.29% |
| 393.45B2PC | Brake Hose or Tubing Chafing and/or Kinking - Connection to Power Unit | 6,921 | 24,764 | 0.29% |
| 393.51 | No or defective brake warning device or pressure gauge | 6,779 | 9,171 | 0.28% |
| 393.207A-STBW | Suspension - Suspension connecting rod or tracking component assembly missing the rubber bushing or the rubber bushing is worn to the extent that the component ca | 6,650 | 7,402 | 0.28% |
| 177.834A-HMC | HM (Cargo) - Operating a motor vehicle with HM not blocked/braced/secured as required. NOTE: Any shifting likely to adversely affect HM/DG package integrity, unde | 6,612 | 6,655 | 0.27% |
| 393.209D-STPAL | Steering - Pitman arm loose on the output shaft | 6,535 | 6,569 | 0.27% |
| 395.3A2-HOSPDIT | HOS (Property) - Driver driving beyond the 14 hour after coming on duty following 10 consecutive hours off duty at the time of inspection. Time | 6,512 | 11,358 | 0.27% |
| 393.75A3-TFL | Tires - Front, leaking or inflation 50% or less than of the maximum inflation pressure | 6,330 | 6,426 | 0.26% |
| 393.205C-WR | Wheel/Rim - Wheel fasteners loose/missing/ineffective/broken. | 6,163 | 8,499 | 0.26% |
| 392.9AA2-OA | Operating Authority - Motor carrier operating a motor vehicle beyond the scope of the motor carriers operating authority. | 6,067 | 6,239 | 0.25% |
| 395.8K2 | Driver failing to retain previous 7 days records of duty status | 5,986 | 6,806 | 0.25% |
| 393.201A | Frame cracked / loose / sagging / broken | 5,950 | 12,135 | 0.25% |
| 393.100A | No or improper load securement | 5,823 | 6,394 | 0.24% |
| 393.45B2-B-AIR | Air Brake - Hose/tubing damaged or not secured | 5,798 | 117,701 | 0.24% |
| 391.41A-MCPC | Medical (Certificate) - Operating a commercial motor vehicle without showing proof of a valid medical certification upon request, but presents proof prior to com | 5,776 | 42,615 | 0.24% |
| 393.9B-LRLIWR | Lighting - Tail lamp - Both lamps on rearmost vehicle inoperative when required to be on | 5,760 | 5,940 | 0.24% |
| 393.45B2 | Brake hose or tubing chafing and/or kinking | 5,716 | 25,006 | 0.24% |
| 393.47A | Inadequate brakes for safe stopping - Brake Lining condition | 5,711 | 24,363 | 0.24% |
| 396.5B-HWSLIW | Hubs - Wheel seal leaking - inner wheel | 5,646 | 17,446 | 0.23% |
| 393.41 | No or defective parking brake system on CMV | 5,641 | 5,928 | 0.23% |
| 392.9A | Failing to secure load | 5,608 | 6,351 | 0.23% |
| 393.75A1-TAORETA | Tires - All others, has more than one ply exposed in the tread area exceeding 2 square inches. | 5,521 | 6,226 | 0.23% |
| 393.11A1-LTSM | Lighting - Turn signal - Any missing on the rearmost vehicle. | 5,511 | 5,731 | 0.23% |
| 392.4A-DOSP | Drugs/Other Substances - Operate a CMV while in possession. | 5,479 | 5,714 | 0.23% |
| 383.95A-LCDL | Restriction - (CDL) - Operate a CMV in violation of a restriction | 5,396 | 5,475 | 0.22% |
| 395.3A3I-HOSPDIT | HOS (Property) - Driving more than 11 hours following 10 consecutive hours off duty at the time of inspection. Time | 5,332 | 8,403 | 0.22% |
| 396.3A1-TAOCV | Tires - All others, in contact with a part of the vehicle | 5,324 | 5,405 | 0.22% |
| 393.51C-BLPW | Air Brake - Low pressure warning device missing/inoperative | 5,301 | 5,495 | 0.22% |
| 396.3A1-TC | Tire in contact with another part of the vehicle | 5,182 | 5,688 | 0.21% |
| 393.43A-TPV | Air Brake - Inoperable or missing tractor protection valve | 5,027 | 5,643 | 0.21% |
| 393.110B2I-C | Cargo - Insufficient tiedowns (w/o headerboard/blocking) for article(s) of cargo 5 feet or less and more than 1,100 lbs | 4,918 | 4,959 | 0.2% |
| 391.15A-LNCDLNSRW | Operating a non-CDL required commercial motor vehicle with driving privileges revoked, suspended, cancelled or otherwise disqualified. (391.15(a)) | 4,882 | 5,916 | 0.2% |
| 393.40F-BNPB | Brake - Inoperative or missing parking/emergency brake on power unit | 4,799 | 4,838 | 0.2% |
| 393.130 | No/improper heavy vehicle/machine securement | 4,727 | 4,866 | 0.2% |
| 391.11B5-LNCDLNVE | License - Endorsement - Operate a CMV without proper endorsement | 4,714 | 4,764 | 0.2% |
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 ↗