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 |
|---|---|---|---|---|
| 396.3A1-STFAC | Steering - Cracked front axle beam | 93 | 96 | 0.0% |
| 393.104D-C | Cargo - Damaged Dunnage/chocks/cradles/shoring bars/blocking and bracing | 92 | 357 | 0.0% |
| 396.3A1-CDTEW | Coupling - Semi-Trailer, drawbar eye worn more than 20% | 92 | 92 | 0.0% |
| 393.132C5 | Insufficient means to retain loose parts or leaking liquids from crushed cars | 91 | 93 | 0.0% |
| 396.3A1-MCF | Brakes - Hydraulic Fluid level in Master Cylinder low | 91 | 106 | 0.0% |
| 393.45D-BHCR | Air Brake - Crimped or restricted | 90 | 1,570 | 0.0% |
| 393.47D1-BLTHE-SA | Hydraulic/Electric Brake - Lining/pad thickness less than 1/16 inch on a steering axle | 90 | 98 | 0.0% |
| 393.75G1-T | Tires - Manufactured homes exceeding tire load limit | 90 | 91 | 0.0% |
| 392.2-MCSR | Medical (Certificate) - Operating a CMV while in violation of state medical certification regulations | 89 | 1,263 | 0.0% |
| 393.104C | Damaged vehicle structures/anchor points | 88 | 584 | 0.0% |
| 393.67C7V-F | Fuel - Missing/improper filler cap | 88 | 6,835 | 0.0% |
| 393.28-BEW | Buses - Electrical cable insulation chafed/frayed/damaged/burnt exposing wire | 87 | 106 | 0.0% |
| 391.41A1-MCOOS | Medical (Certificate) - Operating a commercial motor vehicle while not medically certified as physically qualified to do so. | 86 | 329 | 0.0% |
| 393.41-BNPB-SPR | Brake - Inoperative or missing power unit spring brake | 86 | 1,258 | 0.0% |
| 393.207C-SLSB | Suspension - Leaf spring broken. | 84 | 1,045 | 0.0% |
| 393.45A-HJS | Hydraulic Brake tubing improperly joined or spliced | 84 | 94 | 0.0% |
| 393.62-BEND | Buses - Required emergency exit not properly marked. (does convey message) | 84 | 483 | 0.0% |
| 393.71H-CDHSLMII | Driveaway - Loose mounting, missing or ineffective fasteners, insecure latch, or not in use when required. | 84 | 86 | 0.0% |
| 390.3E3-MC | Carrier - Motor carrier failed to maintain required equipment and accessories in accordance with this subchapter | 83 | 4,853 | 0.0% |
| 393.47D1-BRMMCHE-SA | Hydraulic/Electric Brake - Rotor (disc) metal to metal contact on a steering axle | 83 | 89 | 0.0% |
| 393.40 | Inadequate brake system on a CMV | 82 | 289 | 0.0% |
| 393.42A-BM | Brake - Missing required brake other than a steering axle | 82 | 1,358 | 0.0% |
| 393.45D-BHS | Hydraulic Seeping, bulge or swelling of Hydraulic Brake Hose | 82 | 88 | 0.0% |
| 393.47D1-BPTAD-SA-1/16 | Air Disc Brake - Pad thickness (air disc brakes less than 1/16 inch) on a steering axle | 82 | 89 | 0.0% |
| 391.45A-MCMC | Medical (Certificate) - Operating a CMV without being medically certified | 81 | 536 | 0.0% |
| 392.2-SLLL | State/Local Laws - Littering | 81 | 974 | 0.0% |
| 393.62-BEM | Buses - Required emergency exit missing | 81 | 83 | 0.0% |
| 393.70B2-CDOHNC | Coupling - Operating handle is not closed/locked | 81 | 84 | 0.0% |
| 396.3A1BC | Brake-air compressor violation | 81 | 159 | 0.0% |
| 393.104F1 | Knotted tiedown | 80 | 496 | 0.0% |
| 177.817A-HMPSPMC | HM (Shipping Papers) - Motor carrier permit/require a driver to operate a motor vehicle without a proper shipping paper | 79 | 1,225 | 0.0% |
| 393.45A - AHIL | Brakes - Air brake hose/tubing labeled for other than an air brake system | 79 | 97 | 0.0% |
| 395.24D | ELD cannot transfer ELD records electronically | 79 | 15,852 | 0.0% |
| 396.3A1-CDHSMSCM | Semi-Trailer - Cracks anywhere in the hitch system, including mounting surface and frame cross member | 79 | 129 | 0.0% |
| 393.120B-CDL | Metal Coils - Improper Securement of coils transported with eyes vertical in/on a vehicle with anchor points | 78 | 78 | 0.0% |
| 393.207A-SMRS | Suspension - Missing rubber spring block. | 78 | 120 | 0.0% |
| 393.70B1I-CDPBFL-MT20 | Coupling - Mounting plate or pivot bracket has more than 20% of the fasteners on either side missing/ineffective | 78 | 80 | 0.0% |
| 395.8F1 | Drivers record of duty status not current | 78 | 1,450 | 0.0% |
| 393.70D-CDTSDIR | Coupling - Full Trailer, safety devices with improper repairs | 77 | 84 | 0.0% |
| 172.200A-HMSPSNSP | HM (Shipping Papers) - Shipper failed to provide HM shipping paper | 76 | 456 | 0.0% |
| 393.102B-C | Cargo - Insufficient means to prevent vertical movement | 76 | 532 | 0.0% |
| 172.302A | No ID# on a Bulk Packaging | 75 | 117 | 0.0% |
| 393.203B | Cab/body improperly secured to frame | 75 | 3,386 | 0.0% |
| 396.17C | Operating a CMV without proof of a periodic inspection | 75 | 179,325 | 0.0% |
| 393.205C-WRAWFLMIB | Wheel/Rim - Any wheel fasteners loose/missing/ineffective/broken. | 74 | 25,689 | 0.0% |
| 396.3A1-ALBV | Air Brake - Any leak from a brake valve | 74 | 39,795 | 0.0% |
| 393.116E | Improper Securement of shortwood logs loaded lengthwise | 73 | 73 | 0.0% |
| 393.110D | Large or odd-shaped cargo not adequately secured | 72 | 94 | 0.0% |
| 393.120D-CDL | Metal Coils - Improper securement of coils transported with eyes lengthwise in/on a vehicle with anchor points | 71 | 71 | 0.0% |
| 393.116D-CL | Logs - Improper Securement of shortwood logs loaded crosswise on frame, rail and flatbed vehicles | 70 | 72 | 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 ↗