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 |
|---|---|---|---|---|
| 393.75A1-TRPET | Tires - Has more two or more plies are exposed in the tread area exceeding 2 square inches | 498 | 680 | 0.02% |
| 396.3A1-STLC | Steering - Loose clamp or clamp bolt on tie rod or drag link | 497 | 531 | 0.02% |
| 393.42 | No brakes as required - Explain: | 492 | 815 | 0.02% |
| 393.45D-SGNCNB | Brakes - Service brakes on trailer inoperative due to no trailer connection or air shut off | 492 | 670 | 0.02% |
| 395.3B2-HOSPD | HOS (Property) - Driving after being on duty more than 70 hours in the previous 8 consecutive days. Date and Time | 490 | 926 | 0.02% |
| 391.45B | Expired medical examiner's certificate | 488 | 7,042 | 0.02% |
| 392.5A3-POSS | Intoxicating - No driver shall be on duty or operate a CMV while the driver possesses wine or beer containing 0.5% or more ABV or distilled spirits in any dilutio | 487 | 493 | 0.02% |
| 393.65C | Improper securement of fuel tank | 486 | 681 | 0.02% |
| 392.2DIM | Dimension Violation (Width / Height / Length) | 481 | 18,256 | 0.02% |
| 392.9A-DFSL | Driver - Failing to properly secure load | 478 | 5,125 | 0.02% |
| 393.67 | Fuel tank requirement violations | 477 | 2,716 | 0.02% |
| 393.45B2-B | Air Brake - Hose/tubing damaged or not secured | 475 | 25,091 | 0.02% |
| 393.130C | Improper restraint/securement of item | 474 | 490 | 0.02% |
| 393.45D-BHDB | Air Brake - Damaged by heat or broken | 473 | 588 | 0.02% |
| 392.2-SLLDL | State/Local Laws - Misc. driver's license violation | 468 | 20,858 | 0.02% |
| 396.3A1-CDHM | Coupling - Horizontal movement between upper and lower halves exceeds 1/2 inch | 465 | 465 | 0.02% |
| 393.104A | Inadequate/damaged securement device/system | 459 | 1,415 | 0.02% |
| 391.49J | No valid medical waiver in drivers possession | 458 | 766 | 0.02% |
| 393.45D-BHTBS | Air Brake - Hose/tubing with a bulge/swelling when air pressure is applied | 456 | 466 | 0.02% |
| 395.3B2 | Driving after 70 hours on duty in a 8 day period. (Property carrying vehicle) | 456 | 663 | 0.02% |
| 393.45B2-BHHC | Hydraulic Hose Abraded (Chafed) | 450 | 880 | 0.02% |
| 393.47D2-BLTBD | Drum Brake - Inadequate lining/pad thickness | 447 | 7,200 | 0.02% |
| 391.15A-SOUT | Driving a CMV while disqualified. Suspended for a safety-related or unknown reason and outside the driver's license state of issuance | 443 | 448 | 0.02% |
| 393.17A1-LRLDWR | Lighting - Tail lamp - Both Lamps on rearmost vehicle driveaway missing when required to be on. | 437 | 454 | 0.02% |
| 393.17B2-LSLDMWR | Lighting - Stop lamps - Driveaway - both missing. | 436 | 467 | 0.02% |
| 393.104F3-C | Cargo - Loose or unfastened tiedown | 432 | 11,106 | 0.02% |
| 393.62A | No or Defective bus emergency exits | 432 | 560 | 0.02% |
| 396.3A1T | Tires (general) | 432 | 1,731 | 0.02% |
| 395.8K2-HOSPVI | HOS (Passenger) - Failed to have in possession a record of duty status for the previous 7 consecutive days and available for inspection while on duty | 431 | 488 | 0.02% |
| 393.62-BEMEI | Buses - Marked emergency exit is inoperative (does not open, close and/or secure as designed). | 430 | 445 | 0.02% |
| 393.201A-VFC | Van/OT Trailers - Floor crossmembers, at least 3 adjacent broken/detached and sagging below | 424 | 631 | 0.02% |
| 393.48A-BI-TSA | Brake - Inoperative on a trailer steering axle | 423 | 665 | 0.02% |
| 396.3A1-DLDSEF | Driveline/Driveshaft - Any loose, broken or missing end fitting fastener | 420 | 431 | 0.02% |
| 393.71H10-CDDSDD | Coupling - Driveaway, safety devices wire/chain damaged. | 402 | 418 | 0.02% |
| 393.201A-VURB | Van/OT Trailers - Upper rail buckled/cracked and has missing adjacent roof bows. | 401 | 407 | 0.02% |
| 393.9B-LRLOWR | Lighting - Tail lamp - Both lamps on rearmost vehicle obscured when required to be on | 393 | 424 | 0.02% |
| 393.9A-LRLI | Lighting - Tail lamp - Any inoperative | 390 | 52,986 | 0.02% |
| 393.201A-VSP | Van/OT Trailers - Side Panels damaged completely through in the bay area with sagging lower rail | 389 | 408 | 0.02% |
| 392.2-SLLEWA2 | State/Local Laws - Excessive weight - 2501-5000 lbs over on an axle/axle groups | 388 | 68,516 | 0.02% |
| 382.501A-SSF | Drugs/Other Substances - Operating a CMV while recorded as prohibited from performing safety-sensitive functions. | 383 | 389 | 0.02% |
| 177.823A-HMTVMCMID | HM (Transport Vehicle Markings) - Any ID Number misrepresents the material transported. | 382 | 415 | 0.02% |
| 393.67C7 | Fuel tank fill pipe cap missing | 381 | 3,080 | 0.02% |
| 393.132B-CHVE | Flattened/Crushed Vehicles - Improper use of synthetic webbing | 373 | 374 | 0.02% |
| 393.209C | Loose steering column | 367 | 408 | 0.02% |
| 393.70B1I-CDFAM | Coupling - Sliding fifth wheel fore/aft stop is missing/not secured | 367 | 426 | 0.02% |
| 385.325C-OOSO | OOS Order - Motor carrier operating a CMV while an existing out-of-service order is in effect: New Entrant - Failure of Safety Audit | 364 | 373 | 0.02% |
| 393.48A-BMBC | All Brakes - Missing or Broken Components including Pad Retaining Components and loose or missing caliper mounting bolt(s) | 361 | 1,792 | 0.02% |
| 393.104D | Damaged dunnage, chocks, cradles, shoring bars, blocking and bracing | 359 | 585 | 0.01% |
| 395.13D1-OOSO | OOS Order (HOS) - Operating a CMV after violating any roadside out-of-service order regarding hours of service | 352 | 398 | 0.01% |
| 392.15-SSF | Drugs/Other Substances - Operating a CMV while recorded as prohibited from performing safety-sensitive functions. | 350 | 355 | 0.01% |
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 ↗