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 |
|---|---|---|---|---|
| 393.47D2-BRMMCHE | Hydraulic/Electric Brake - Rotor (disc) metal to metal contact | 14 | 164 | 0.0% |
| 393.70B1I-CDPBG-18 | Coupling - Mounting plate or pivot bracket has a crack, or gap caused by corrosion that is 1/8 inch or more in width | 14 | 14 | 0.0% |
| 393.86A1 | Rear Impact Guards Required - trailer manufactured on or after January 26, 1998 | 14 | 681 | 0.0% |
| 396.3A1-STRW | Steering - Steering component other than steering column repair welded. | 14 | 17 | 0.0% |
| 172.302 | Marking requirements bulk packagings | 13 | 34 | 0.0% |
| 392.2WC | Wheel (Mud) Flaps missing or defective | 13 | 22,694 | 0.0% |
| 393.122D-CPR | Paper Rolls - Improper securement of stacked loads of paper rolls transported with eyes vertical in a sided vehicle | 13 | 13 | 0.0% |
| 393.136D-CLB | Large Boulders - Improperly securement of a cubic shaped boulder | 13 | 15 | 0.0% |
| 393.201C-FR | Frame - Bent, cut or notched other than by vehicle manufacturer | 13 | 9,465 | 0.0% |
| 393.28-WS-6 | Wiring Systems - Bare, loose, dangling, chafing or poorly connected wires | 13 | 3,869 | 0.0% |
| 393.3A1-TARPSWD | Tires - Presence of rubber-coated cord or cured rubber plug in the sidewall on a dual set of tires. | 13 | 155 | 0.0% |
| 393.47A-RW | Brake rotor worn to or through center vents | 13 | 15 | 0.0% |
| 393.47B-BMBCBD | Drum Brake - Mismatched brake chamber sizes on the same axle other than a steering axle | 13 | 1,011 | 0.0% |
| 393.50B-B | Brake - Insufficient vacuum reserve to permit one full brake application after the engine is shut off | 13 | 16 | 0.0% |
| 393.62D | No or Defective Safety glass and/or push-out window | 13 | 43 | 0.0% |
| 393.70B1I-SC | Slide curl broken, cracked or repaired by welding | 13 | 26 | 0.0% |
| 393.70C-CDTDSIL | Coupling - Full Trailer, drawbar slider ineffective latch | 13 | 14 | 0.0% |
| 393.78A-WS | Washers - Inoperative washing system. | 13 | 113,849 | 0.0% |
| 393.84 | Inadequate floor condition | 13 | 704 | 0.0% |
| 393.9B-LHLOWR | Lighting - Headlamps - Both obscured when required to be on | 13 | 21 | 0.0% |
| 395.24C2III | Driver failed to manually add shipping document number | 13 | 22,445 | 0.0% |
| 395.34A1-ELDDFN | HOS (ELD) - Driver failed to note the malfunction of the ELD and provide written notice of the malfunction to the motor carrier within 24 hours | 13 | 4,670 | 0.0% |
| 396.3A1-CDKL | Coupling - Kingpin loose | 13 | 14 | 0.0% |
| 107.601 | Failing to register with PHMSA prior to transporting hazardous materials requiring HM registration | 12 | 598 | 0.0% |
| 172.202A2 | No or improper Shipping Name | 12 | 619 | 0.0% |
| 392.2FT | State or International Fuel Tax (IFTA) Violation | 12 | 33,073 | 0.0% |
| 393.120B2 | Improper securement of metal coils transported in rows with the eyes vertical | 12 | 12 | 0.0% |
| 393.134B2 | Container not secured to front of vehicle | 12 | 13 | 0.0% |
| 393.209E-SPSLA | Steering - Power steering leaking anywhere. | 12 | 23,672 | 0.0% |
| 393.47F-B | Brake - Wedge type brake(s) out-of-adjustment | 12 | 1,075 | 0.0% |
| 393.53B-B | Air Brake - CMV manufactured on or after 10/20/1994 has an automatic airbrake adjustment system that fails to compensate for wear | 12 | 116,411 | 0.0% |
| 393.70C-CDTDMF | Coupling - Full Trailer, drawbar missing fasteners | 12 | 15 | 0.0% |
| 393.71J-SMU | Upper saddle-mount - Missing Fasteners, loose, cracked, or excessive movement | 12 | 36 | 0.0% |
| 395.1H1 | Violation of 15, 20, 70/80 Hours of Service rules for Alaska drivers of Property | 12 | 23 | 0.0% |
| 395.1H-HOSAKPDIT | HOS (Alaska Property) - Driving more than 15 hours following 10 consecutive hours off duty at the time of inspection. Time | 12 | 15 | 0.0% |
| 396.3A1-CDTDMF | Coupling - Semi-Trailer, drawbar missing fasteners | 12 | 13 | 0.0% |
| 177.848D | Prohibited loading, transportation, or storage combination of hazardous materials | 11 | 15 | 0.0% |
| 386.84A1 | Operating with suspended registration for non-payment of a civil penalty | 11 | 34 | 0.0% |
| 393.122B | Improper securement of paper rolls transported with eyes vertical in a sided vehicle | 11 | 11 | 0.0% |
| 393.203A | Cab door missing/broken | 11 | 3,952 | 0.0% |
| 393.209D-STSCR | Steering - Steering column has universal joint with a repair weld | 11 | 13 | 0.0% |
| 393.70B1II-FWUCG | Upper coupler assembly crack or gap caused by corrosion more than 1/8 inch (3.2 mm) or more in width | 11 | 21 | 0.0% |
| 395.5A1-HOSPVIDIT | HOS (Passenger) - Driving more than 10 hours following 8 consecutive hours off duty at the time of inspection. Time | 11 | 22 | 0.0% |
| 395.8A2II | Driver failed to submit their record of duty status within 13 days | 11 | 118 | 0.0% |
| 396.3A1-AWW | Wheels - Welded Repair on wheel other than Disc-to-Rim attachment | 11 | 14 | 0.0% |
| 172.202A3 | No or improper Hazard Class or Division number | 10 | 351 | 0.0% |
| 172.202A7-HMSPS | HM (Shipping Papers) - Shipper HM shipping paper does not list number and type of package as required. | 10 | 342 | 0.0% |
| 172.301A | No shipping name or ID# on non-bulk | 10 | 239 | 0.0% |
| 180.407A | Failure to test / inspection a specification cargo tank when due | 10 | 490 | 0.0% |
| 383.21 | Operating a CMV with more than 1 driver license | 10 | 853 | 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 ↗