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-FA | Front Axle and any other steering components cracked/repair welded | 180 | 192 | 0.01% |
| 393.132C | Insufficient tiedowns per vehicle stack of crushed cars | 179 | 179 | 0.01% |
| 391.11B2 | Driver cannot read or speak the English language sufficiently to respond to official inquiries | 178 | 5,285 | 0.01% |
| 393.11A1-LSLM | Lighting - Stop lamps - Any missing. | 177 | 3,740 | 0.01% |
| 396.9C2 | Operating an out-of-service vehicle | 176 | 570 | 0.01% |
| 393.209A-STSWNS | Steering - Steering wheel not properly secured | 173 | 177 | 0.01% |
| 391.15A-NSOUT | Driving a CMV while disqualified. Suspended for a non-safety-related reason and outside the state of driver's license issuance | 170 | 277 | 0.01% |
| 383.23A2-H | Operating a CMV without a valid CDL: No hazardous materials / dangerous goods endorsement | 169 | 170 | 0.01% |
| 393.209D-STGBMC | Steering - Gear box/mounting bracket cracked | 169 | 170 | 0.01% |
| 393.102C2-C | Cargo - Sided Vehicle - Insufficient load securement so that it cannot shift or tip to the extent that the vehicle's stability or maneuverability is adversely aff | 168 | 934 | 0.01% |
| 393.83D | Improper exhaust - Bus (Powered by other than Gasoline) | 167 | 254 | 0.01% |
| 396.3A1-CDST | Defective coupling devices for semi-trailer | 165 | 182 | 0.01% |
| 177.834J2-HMBP | HM (Bulk Packages) - Operate a motor vehicle with the internal valve in the open position | 164 | 165 | 0.01% |
| 393.40A-B | Brake - Inadequate braking system | 164 | 4,520 | 0.01% |
| 396.3A1-BPA | Hydraulic Power Assist Fails to Operate on Hydraulic Brakes | 164 | 177 | 0.01% |
| 393.201A-VBF | Van/OT Trailers - Broken floor with protruding freight and sagging crossmembers | 161 | 192 | 0.01% |
| 393.118D3 | Insufficient or improper arrangement of tiedowns for lumber or building materials | 159 | 161 | 0.01% |
| 395.8E1-HOSPVID | HOS (Passenger) - No driver may make a false report in connection with a duty status. Explain | 158 | 1,981 | 0.01% |
| 385.325C | Operating in interstate commerce on or after the Operational Out of Service order date for failure of a Safety Audit | 157 | 163 | 0.01% |
| 390.3E-NONCDL | Driver Prohibited from Performing Safety Sensitive Functions per 382.501(a) in the Drug and Alcohol Clearinghouse in a CMV that does not require a CDL | 157 | 164 | 0.01% |
| 393.70B2 | Defective fifth wheel locking mechanism | 155 | 170 | 0.01% |
| 393.70D8 | Improper safety chain attachment | 155 | 332 | 0.01% |
| 396.9D2 | Failure to correct defects noted on previous inspection report | 155 | 12,808 | 0.01% |
| 385.103C | MX Carrier - Mexican domiciled carrier operating a CMV in the U.S. with provisional operating authority without a current CVSA decal | 153 | 157 | 0.01% |
| 391.11B2-Z | Border Zone - Driver cannot satisfy the English language proficiency requirements of 391.11(b)(2) in accordance with the current corresponding FMCSA enforcement | 153 | 69,014 | 0.01% |
| 393.120C-CDL | Metal Coils - Improper securement of coils transported with eyes crosswise in/on a vehicle with anchor points | 153 | 154 | 0.01% |
| 393.45A-BHIJ | Hydraulic Improperly joined such as a splice made by sliding the hose ends over a piece of tubing and clamping the hose to the tube | 152 | 156 | 0.01% |
| 393.120 | No or improper securement of metal coils | 151 | 168 | 0.01% |
| 392.2-SLLEWA3 | State/Local Laws - Excessive weight - More than 5000 lbs over on an axle/axle groups | 148 | 49,949 | 0.01% |
| 393.126C2 | All corners of loaded intermodal container not secured when transported on vehicle other than container chassis vehicle | 148 | 162 | 0.01% |
| 393.70C-CDHSLMII | Full Trailer - Loose mounting, missing or ineffective fasteners, insecure latch, or not in use when required. | 148 | 162 | 0.01% |
| 393.62-BEMEOI | Buses - Marked emergency exit not marked with operating instructions | 147 | 165 | 0.01% |
| 392.2-SLLSR | State/Local Laws - State registration/tag violation | 145 | 288,947 | 0.01% |
| 393.124 | No or improper securement of concrete pipe | 145 | 154 | 0.01% |
| 393.45A-HBL | Hydraulic Brake - leaking on application | 145 | 173 | 0.01% |
| 393.17 | No/defective lamp/reflector-towaway operation | 143 | 167 | 0.01% |
| 393.122B-CPR | Paper Rolls - Improper securement of paper rolls transported with eyes vertical in a sided vehicle | 141 | 144 | 0.01% |
| 393.126D-CIM | Intermodal Containers - Improper securement of empty intermodal containers transported on vehicles other than container chassis vehicle(s) | 139 | 143 | 0.01% |
| 393.83C | Improper exhaust - Bus (Powered by gasoline) | 139 | 165 | 0.01% |
| 393.75A2-TAOBB-6 | Tires - Any tire with observable bumps, bulge or knots | 138 | 1,433 | 0.01% |
| 173.24F1 | Closures for packagings must not be open or leaking | 137 | 152 | 0.01% |
| 383.23A2-T | Operating a CMV without a valid CDL: No Tank Vehicle endorsement | 137 | 137 | 0.01% |
| 391.11B5 | Not licensed for type vehicle being operated | 137 | 137 | 0.01% |
| 396.3A1-CDTPHF | Coupling - Semi-Trailer pintle hook loose/missing fasteners | 134 | 134 | 0.01% |
| 172.332A | Failure to display ID Numbers when required | 133 | 228 | 0.01% |
| 393.47A-BCFSAD | Air Disc Brake - Contaminated friction surface | 133 | 1,981 | 0.01% |
| 177.817E | Shipping paper accessibility | 131 | 2,745 | 0.01% |
| 393.209A | Steering wheel not secured/broken | 131 | 166 | 0.01% |
| 393.116C-CL | Logs - Logs not solidly packed/outer bottom logs not in contact with and resting solidly against the bunks, bolsters, stakes or standards | 130 | 132 | 0.01% |
| 393.47A-BCFSHE-SA | Hydraulic/Electric Brake - Contaminated friction surface on a steering axle | 130 | 130 | 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 ↗