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 |
|---|---|---|---|---|
| 393.42A-BMAW | Brake - All wheels not equipped with brakes as required | 51 | 83 | 0.0% |
| 393.70B1I-CDPBC-MT20 | Coupling - Mounting plate or pivot bracket is cracked more than 20% of the distance across the metal in the direction of the crack | 51 | 53 | 0.0% |
| 396.3A1-DLDSDST | Driveline/Driveshaft - Any shift tube with obvious twist | 51 | 51 | 0.0% |
| 393.205A-WRSWC | Wheel/Rim - Spoke wheel has two or more cracks more than 1 inch | 50 | 52 | 0.0% |
| 395.3A2-HOSPRNP | Driving beyond 14 hour duty period. (Property carrying vehicle) - Nominal Violation | 50 | 4,735 | 0.0% |
| 393.102A1II | Insufficient means to prevent rearward movement | 49 | 181 | 0.0% |
| 393.209E-STPSD | Steering - Power steering components loose/broken | 49 | 1,168 | 0.0% |
| 393.70B1II-FWUC | Upper coupler assembly parent metal cracked, extending more than 20 percent of the distance across the metal in the direction of the crack | 49 | 59 | 0.0% |
| 395.24D-ELDPT | HOS (ELD) - On request by an authorized safety official, a driver must produce and transfer from an ELD the driver's hours of service records in accordance with t | 49 | 16,069 | 0.0% |
| 396.3A1-TARPSWST | Tires - Presence of rubber-coated cord or cured rubber plug in the sidewall of a single tire. | 49 | 52 | 0.0% |
| 172.332 | Fail to display ID Numbers when required. | 48 | 1,111 | 0.0% |
| 177.801-HMHCF | HM (Highway Carriage) - Driver accepted/transported forbidden HM in accordance with this Subchapter. Explain | 48 | 55 | 0.0% |
| 385.13A2 | Operating a commercial motor vehicle after the effective date of an Unsatisfactory rating - all other carrier types | 48 | 52 | 0.0% |
| 393.48A-BLMCBAD | Air Disc Brake - Loose chamber/caliper mounting bolt(s) | 48 | 994 | 0.0% |
| 393.65C-FIS | Fuel - Improper securement of fuel tank. | 48 | 726 | 0.0% |
| 393.83E | Exhaust - System discharging from a truck or truck-tractor at a location other than at the rear of the cab | 48 | 9,384 | 0.0% |
| 393.124B-CCP | Concrete Pipe - Insufficient tiedown aggregate working load limit. | 47 | 51 | 0.0% |
| 393.40B-BPR | Hydraulic No Pedal Reserve on Hydraulic Brakes | 47 | 48 | 0.0% |
| 393.70B1I-W | Fifth wheel more than 20 percent of the total length of all the original welds are cracked on either side of the vehicle | 47 | 49 | 0.0% |
| 396.5B-L | Lubrication - Oil or grease leak | 47 | 105,438 | 0.0% |
| 392.9AA1/H | Household Goods carrier operating without Operating Authority (49 USC 14901(d)(3)) | 46 | 50 | 0.0% |
| 393.25E-L | Lighting - Lamps (other than headlamps), not steady burning as required | 46 | 3,935 | 0.0% |
| 393.47D2-BRMMCAD | Air Disc Brake - Rotor (disc) metal to metal contact | 46 | 517 | 0.0% |
| 390.19B2-BIENNIAL | Motor Carrier failed to file biennial FMCSA registration update as required | 45 | 28,096 | 0.0% |
| 392.5C2 | Violating OOS order pursuant to 392.5(a)/(b) | 45 | 52 | 0.0% |
| 393.104F4/R | No edge protection for tiedowns | 45 | 785 | 0.0% |
| 393.203E-CBP | Cab and Body Parts - Cab front bumper missing/not secured/protruding | 45 | 10,168 | 0.0% |
| 393.47G-BRW | Brake - A rotor surface is worn to or through center vents | 45 | 48 | 0.0% |
| 393.83B | Exhaust - Discharging below the fuel tank or filler pipe | 45 | 237 | 0.0% |
| 396.3A1-DLDSUJBCM | Driveline/Driveshaft - Any missing universal joint bearing cap. | 45 | 45 | 0.0% |
| 396.7A-UO | Unsafe Operations - Prohibited | 45 | 898 | 0.0% |
| 177.817A-HMRSPMC | HM (Shipping Papers) - Motor carrier permit/require a driver to operate a motor vehicle without a required shipping paper | 44 | 232 | 0.0% |
| 392.2-SLLMF | State/Local Laws - Wheel (mud) flaps missing or defective | 44 | 40,195 | 0.0% |
| 393.47D2-BLT-1/16AD | Air Disc Brake - Lining/pad thickness less than 1/16 inch | 44 | 426 | 0.0% |
| 393.50 | Inadequate reservoir for air/vacuum brakes | 44 | 292 | 0.0% |
| 393.70B1II-CDBUC | Coupling - Bolted upper coupler has less than the required number of bolts | 44 | 54 | 0.0% |
| 393.71H10-CDDSDIR | Coupling - Semi-Trailer, driveaway, safety devices with improper repairs | 44 | 45 | 0.0% |
| 396.3A1-TARPSWT | Tires - Presence of rubber-coated cord or cured rubber plug in the sidewall of a tire. | 44 | 46 | 0.0% |
| 383.71C-LCDL | License (CDL) - Operate a CMV without transferring CDL to new state of domicile within 30 days | 43 | 1,127 | 0.0% |
| 393.47A-BCFSHE | Hydraulic/Electric Brake - Contaminated friction surface | 43 | 849 | 0.0% |
| 393.48A-BMBCAD | Air Disc Brake - Missing/broken component(s) | 43 | 1,278 | 0.0% |
| 393.701II-CDUCC-MT20 | Coupling - Upper coupler is cracked more than 20% of the distance across the metal in the direction of the crack | 43 | 43 | 0.0% |
| 392.2-LCDLRN | License Restriction - (CDL) - Operate a CMV in violation of an intrastate restriction while in state of issuance. | 42 | 123 | 0.0% |
| 393.203C | Hood not securely fastened | 42 | 14,125 | 0.0% |
| 393.47A-BCLMAD | Air Disc Brake - Cracked/loose/missing lining/pad. | 42 | 858 | 0.0% |
| 393.70C-CDTHSW | Coupling - Full Trailer, pintle hook has more than 20% wear in the horn section | 42 | 43 | 0.0% |
| 396.3A1-DLDSYEC | Driveline/Driveshaft - Any visible crack in a yoke end | 42 | 43 | 0.0% |
| 396.3A1-STPAW | Steering - Pitman arm repair welded | 42 | 43 | 0.0% |
| 393.70B1I-CDCG-18 | Coupling - A crack, or gap caused by corrosion that is 1/8 inch or more in width | 41 | 41 | 0.0% |
| 393.70B1I-CDPPNS | Coupling - Pivot bracket pin missing/not secured | 41 | 44 | 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 ↗