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 |
|---|---|---|---|---|
| 392.9BA-NOREG-2 | Operating a commercial motor vehicle with no USDOT number when required and a history of operating a commercial motor vehicle with no USDOT number when required. | 236 | 256 | 0.01% |
| 393.75A2-TFBB | Tires - Front, bump or bulge related to tread or sidewall separation | 235 | 309 | 0.01% |
| 385.13A2-OOSO | OOS Order - Motor carrier operating a CMV while an existing out-of-service order is in effect: UNSAT/UNFIT - Property Carriers | 234 | 239 | 0.01% |
| 392.2-SLLEWG2 | State/Local Laws - Excessive weight - 2501-5000 lbs over on allowable gross weight | 234 | 18,834 | 0.01% |
| 393.47C-BSALMBD-SA | Drum Brake - Slack adjuster length mismatched on a steering axle | 233 | 329 | 0.01% |
| 393.62-BEMEO | Buses - Marked emergency exit is obstructed (includes obstruction of the markings, release mechanism, and/or the opening of the emergency exit | 231 | 245 | 0.01% |
| 395.8E1PC | HOS - False record of duty status driver improper use of Personal Conveyance - Not OOS | 230 | 23,957 | 0.01% |
| 393.106C2 | Cargo without direct contact not prevented from shifting while in transit | 229 | 248 | 0.01% |
| 395.8 | Record of Duty Status violation (general/form and manner) | 229 | 18,061 | 0.01% |
| 387.7F | Carrier - Foreign domiciled motor carrier permit/require a driver to operate a CMV without proof of financial responsibility in English, (MCS-90 or MCS-82) in the | 228 | 4,446 | 0.01% |
| 392.5A2-UI | Operating a CMV while under the influence of an intoxicating beverage regardless of its alcohol content | 227 | 231 | 0.01% |
| 396.3A1-DLDSJM | Driveline/Driveshaft - Any horizontal or vertical movement of slip joint yoke shaft of greater than 1/2 inch, with hand pressure only. | 227 | 248 | 0.01% |
| 393.116A-CL | Logs - Improperly secured firewood/stumps/log debris | 226 | 228 | 0.01% |
| 393.23 | Required lamp not powered by vehicle electric | 226 | 599 | 0.01% |
| 393.48A-BMBCBD | Drum Brake - Missing/broken component(s) | 226 | 13,693 | 0.01% |
| 393.48A-BIBD | Drum Brake - Inoperative other than a steering axle | 225 | 30,996 | 0.01% |
| 393.201A-VLRDF | Van/OT Trailers - Lower rail, drop frame trailer twisted/bent/or cracked from fatigue | 224 | 273 | 0.01% |
| 386.83A1-OOSOFHC | OOS Order - Motor carrier operating a CMV while an existing out-of-service order is in effect: Failure to pay fine - For-Hire Carrier | 223 | 230 | 0.01% |
| 392.5A1-I | Intoxicating - No driver shall use alcohol, or be under the influence of alcohol, within 4 hours before going on duty or operating, or having physical control of, | 222 | 225 | 0.01% |
| 393.47A-BDRF | Brake - Drum or rotor (disc) missing or in danger of falling away | 221 | 228 | 0.01% |
| 393.106B-C | Cargo - Not immobilized or secured | 220 | 1,542 | 0.01% |
| 393.65C-F | Fuel - Improper securement of fuel tank | 220 | 312 | 0.01% |
| 396.3A1-CDLME | Coupling - Semi-Trailer, loose mounting, missing or ineffective fasteners, or insecure latch (excluding fifth wheel and pintle hooks) | 220 | 240 | 0.01% |
| 393.207C-SLB | Suspension - 25% or more of the leaves in a spring assembly are broken | 219 | 219 | 0.01% |
| 383.23A2-R | Operating a CMV without a valid CDL: Violation of air brake restriction | 217 | 222 | 0.01% |
| 393.70D-CDTSDM | Coupling - Full Trailer, safety devices missing | 208 | 212 | 0.01% |
| 396.3A1-FWMOV | Fifth wheel- Movement exceeds 1/2 inch | 207 | 217 | 0.01% |
| 393.201A-FRCLS | Frame - Cracked/loose/sagging/broken frame or chassis | 206 | 15,071 | 0.01% |
| 392.2SLSCR | State/Local Laws - CMV safety chains | 205 | 2,078 | 0.01% |
| 393.75C-TAOTD-LT2/32 | Tires - Less than 2/32 inch tread depth | 205 | 102,350 | 0.01% |
| 395.3A2-PROPN | Driving beyond 14 hour duty period (Property carrying vehicle) - Nominal Violation | 204 | 3,380 | 0.01% |
| 393.70B2-CDKPE | Coupling - Kingpin not properly engaged | 202 | 209 | 0.01% |
| 392.3-FPROP | Fatigue - Operate a property-carrying CMV while impaired by fatigue | 199 | 202 | 0.01% |
| 392.4A | Driver on duty and under the influence of, or using a narcotic drug / amphetamine, which renders the driver incapable of safe operation. | 199 | 221 | 0.01% |
| 396.7A-SIBT | Tires - Solid item lodged between a set of dual tires | 199 | 199 | 0.01% |
| 393.201A-VURC | Van/OT Trailers - Upper rail buckled/cracked and has missing/loose fasteners | 197 | 208 | 0.01% |
| 391.11B5-DEN | Driver operating a CMV without proper endorsements or in violation of restrictions. | 196 | 204 | 0.01% |
| 393.126C-CIM | Intermodal Containers - Improper securement of loaded intermodal containers transported on vehicles other than container chassis vehicle(s) | 196 | 198 | 0.01% |
| 393.128B3 | Tiedown(s) not over/around wheels | 195 | 215 | 0.01% |
| 393.75A4-PBME | Tires - Has a cut to the extent that the ply or belt material is exposed. | 194 | 4,475 | 0.01% |
| 385.105B-OOSO | OOS Order - Motor carrier operating a CMV while an existing out-of-service order is in effect: MX Carrier - Inadequate Corrective Action | 193 | 205 | 0.01% |
| 396.3A1-HSH | Hubs - Smoking from hub assembly | 190 | 190 | 0.01% |
| 393.62C | No or Defective bus emergency exit windows | 189 | 217 | 0.01% |
| 392.9BA-NOREG-2INTER | Operating a commercial motor vehicle with no USDOT number when required and a history of operating a commercial motor vehicle with no USDOT number when required. | 187 | 202 | 0.01% |
| 392.2-SLLEWG3 | State/Local Laws - Excessive weight - More than 5000 lbs over on allowable gross weight | 185 | 37,558 | 0.01% |
| 391.45A-MCEM | Medical (Certificate) - Operating a CMV with an expired medical certificate | 184 | 1,624 | 0.01% |
| 393.70B2-CDLMP | Coupling - Locking mechanism parts are missing/broken/deformed and kingpin is not secure | 184 | 200 | 0.01% |
| 396.3A1-STC | Steering - Cracked steering component other than steering column | 182 | 189 | 0.01% |
| 177.834J1-HMBPMC | HM (Bulk Packages) - Missing or improperly secured manhole covers. NOTE: An OOS condition exists when any of the manhole cover's securement devices are missing or | 181 | 181 | 0.01% |
| 393.62E | No or inadequate bus emergency exit marking | 181 | 582 | 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 ↗