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 |
|---|---|---|---|---|
| 396.7-CDMMNU | Coupling - Semi-Trailer, mismatched coupler/ball/receiver, or not in use, when required | 25 | 25 | 0.0% |
| 173.24C1I-HMBPSP | HM (Bulk Packages) - Shipper providing HM/DG in a bulk package/large means of containment not authorized/selected for the material being transported | 24 | 24 | 0.0% |
| 392.2-SLLSIV | State/Local Laws - State insurance violation | 24 | 38,282 | 0.0% |
| 393.45D - HHIL | Brakes - Hydraulic brake hose/line labeled for other than a hydraulic brake system | 24 | 31 | 0.0% |
| 393.47D2-BLTHE | Hydraulic/Electric Brake - Lining/pad thickness less than 1/16 inch | 24 | 220 | 0.0% |
| 393.70B1I-CDSCBCW | Coupling - Slide curl is broken, cracked or repaired by welding. | 24 | 29 | 0.0% |
| 393.91-BU | Buses - Seats not secured/loose or equipped with improper aisle seats | 24 | 254 | 0.0% |
| 395.3B1-HOSPRNC | Driving after 60 hours on duty in a 7-day period at time of inspection. (Property carrying vehicle) - Nominal Violation | 24 | 30 | 0.0% |
| 396.3A1-TFRPSW | Tires - Front, Presence of rubber-coated cord or cured rubber plug in the sidewall | 24 | 27 | 0.0% |
| 172.303A | Prohibited HM marking on package | 23 | 90 | 0.0% |
| 172.519 | Placard does not meet specifications | 23 | 391 | 0.0% |
| 393.207C-SCSC | Suspension - Composite spring cracked beyond 75% of the length | 23 | 23 | 0.0% |
| 393.70C-CDTPHC | Coupling - Full Trailer, pintle hook cracked | 23 | 23 | 0.0% |
| 393.71K-SML | Lower saddle-mount - Missing Fasteners, loose, cracked, or excessive movement | 23 | 148 | 0.0% |
| 395.22H4 | Driver failed to maintain supply of blank drivers records of duty status graph-grids | 23 | 13,016 | 0.0% |
| 393.102C | Exceeding working load limit for tiedowns | 22 | 53 | 0.0% |
| 393.136C-CLB | Large Boulders - Improper use of tiedowns. | 22 | 22 | 0.0% |
| 393.47E | BRAKE OUT OF ADJUSTMENT - 2 1/2@C30 AXLE2 | 22 | 351,285 | 0.0% |
| 395.3A3-HOSPRNP | Driving beyond 11 hour driving limit in a 14-hour period. (Property carrying vehicle) - Nominal Violation | 22 | 5,244 | 0.0% |
| 396.3A1-CDUCCG-18 | Coupling - Upper coupler has a crack or gap caused by corrosion that is 1/8 inch or more in width | 22 | 22 | 0.0% |
| 172.502A1-HMPP | HM (Placarding) - Prohibited placarding. Except as provided in paragraph (b) of this section, no person may affix or display on a packaging, freight container, un | 21 | 1,485 | 0.0% |
| 173.24B | Failed to meet general package requirements | 21 | 73 | 0.0% |
| 385.308D | Operating in violation of FMCSA Operational Out of Service order for Failure to respond to Expedited Action Notification | 21 | 24 | 0.0% |
| 393.104C-C | Cargo - Damaged vehicle structures/anchor points | 21 | 594 | 0.0% |
| 393.42A | NO BRAKES ON ALL WHEELS AS REQUIRED | 21 | 75 | 0.0% |
| 396.3A1-CDFW-18 | Coupling - Fifth wheel plate has a crack or gap caused by corrosion that is 1/8 inch or more in width | 21 | 22 | 0.0% |
| 396.3A1-DLDSDSCW | Driveline/Driveshaft - Obvious cracked weld at the shaft tube end. | 21 | 21 | 0.0% |
| 396.3A1-STDH | Steering - Drag link has non-manufactured hole. | 21 | 23 | 0.0% |
| 172.328A | Shipper failed to provide or affix ID# for cargo tank | 20 | 33 | 0.0% |
| 172.336C | Failing to display ID numbers according to provisions in table of 172.336(c) | 20 | 43 | 0.0% |
| 392.2LC | Improper lane change | 20 | 6,572 | 0.0% |
| 393.201D-FR | Frame - Accessories improperly attached | 20 | 2,799 | 0.0% |
| 393.43B-BATV | Brake - Air, towing vehicle unable to actuate trailer parking/emergency brakes manually | 20 | 3,957 | 0.0% |
| 393.70B1I-C | Fifth wheel cracked or a gap caused by corrosion 1/8 inch (3.2 mm) or more in width | 20 | 30 | 0.0% |
| 393.70C-CDTMUFB | Coupling - Turntable mounting, top flange has less than six effective bolts | 20 | 22 | 0.0% |
| 393.71H-CDDEW | Coupling - Driveaway, drawbar eye worn more than 20% | 20 | 22 | 0.0% |
| 172.331 | Markings for other bulk packages | 19 | 34 | 0.0% |
| 177.840A | No or improper Class 2 Cylinder securement | 19 | 34 | 0.0% |
| 390.33-BSEM | Buses - Seating in excess of the manufacturer's designed seating capacity | 19 | 19 | 0.0% |
| 393.70A | Defective coupling device-improper tracking | 19 | 116 | 0.0% |
| 393.70B1I-MPC | Crack in the mounting plate or pivot bracket (parent metal) extending more than 20 percent of the distance across the metal in the direction of the crack | 19 | 25 | 0.0% |
| 393.75F | Weight carried exceeds tire load limit | 19 | 23 | 0.0% |
| 395.5B2-HOSPVIDIT | HOS (Passenger) - Driving after being on duty more than 70 hours in the previous 8 consecutive days at the time of inspection. Time | 19 | 21 | 0.0% |
| 395.8A1IIIB-HOSF | HOS (Form) - Record of duty status form not in specified grid form and/or in duplicate for each 24 hour period. Date | 19 | 160 | 0.0% |
| 396.17C-PI | Operating a CMV without documentation of a periodic inspection | 19 | 324,412 | 0.0% |
| 396.3A1-GLEAK | Vehicle with fuel leakage from a CNG, LNG or LPG system verified by bubble test or gas detection meter | 19 | 20 | 0.0% |
| 396.3A1-WRWR | Wheel/Rim - Welded repair on aluminum wheel | 19 | 19 | 0.0% |
| 393.118D | Insufficient protection against lateral movement of lumber or building materials | 18 | 20 | 0.0% |
| 393.11A1-LHLM | Lighting - Headlamp(s) - Any missing | 18 | 6,246 | 0.0% |
| 393.122C-CPR | Paper Rolls - Improper securement of split loads of paper rolls transported with eyes vertical in a sided vehicle | 18 | 18 | 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 ↗