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 |
|---|---|---|---|---|
| 393.65F | Improper fuel line protection | 8 | 2,260 | 0.0% |
| 393.70B1II-CDUCRW | Coupling - Upper coupler repair weld is cracked | 8 | 13 | 0.0% |
| 393.71H-CDPHC | Coupling - Driveaway, pintle hook cracked | 8 | 8 | 0.0% |
| 393.84-FL | Floor - Inadequate floor condition | 8 | 921 | 0.0% |
| 396.3A1BD | Brake-defective brake drum | 8 | 12 | 0.0% |
| 396.3A1-CDTDSIL | Coupling - Semi-Trailer, drawbar slider ineffective latch | 8 | 9 | 0.0% |
| 173.30 | No or Improper HM Loading by Shipper | 7 | 42 | 0.0% |
| 177.842D | Blocking and bracing of RAM packages | 7 | 8 | 0.0% |
| 387.301A | Carrier -Motor carrier shall not engage in interstate or foreign commerce without proof of public liability and property damage insurance as required in 49 CFR 38 | 7 | 5,989 | 0.0% |
| 390.21TB2-DOT | Operate a CMV without USDOT number displayed. Must be preceded by the letters USDOT | 7 | 112,577 | 0.0% |
| 393.104F2-C | Cargo - Use of tiedown with improper repair | 7 | 95 | 0.0% |
| 393.116D1 | Shortwood log extends more than 1/3 of logs total length beyond supporting structure of vehicle | 7 | 8 | 0.0% |
| 393.122E-CPR | Paper Rolls - Improper securement of paper rolls transported with eyes crosswise in a sided vehicle | 7 | 7 | 0.0% |
| 393.48A-BCM | Brakes - Hydraulic Brake Caliper movement exceeds 1/8 (0.125) (3.175 mm) | 7 | 13 | 0.0% |
| 393.48A-BCMHE-SA | Hydraulic/Electric Brake - Hydraulic brake caliper movement exceeds 1/8 inch on a steering axle | 7 | 8 | 0.0% |
| 393.62B | No or defective bus emergency exits, manufactured on or after 9/1/1973 but before 9/1/1994 | 7 | 10 | 0.0% |
| 393.701II-CDUCC-LT20 | Coupling - Upper coupler is cracked 20% or less of the distance across the metal in the direction of the crack | 7 | 44 | 0.0% |
| 393.70C-CDHSWR | Full Trailer - Any welded repairs to the ball, ball-socket, pin or eye. | 7 | 7 | 0.0% |
| 393.71K-CDLSMF | Coupling - Lower saddle-mount has ineffective/missing fasteners | 7 | 47 | 0.0% |
| 393.81-H | Horn - Inoperative or defective | 7 | 16,747 | 0.0% |
| 393.86A1-RIG | Rear Impact Guards - Trailers and semitrailers manufactured on or after January 26, 1998 inadequate or missing. | 7 | 2,459 | 0.0% |
| 393.95F | Emergency Equipment - Stopped vehicle warning devices missing or improper | 7 | 127,787 | 0.0% |
| 395.1H-HOSAKPD | HOS (Alaska Property) - Driving more than 15 hours following 10 consecutive hours off duty during the previous 8 consecutive day period. Date and Time | 7 | 38 | 0.0% |
| 395.24C1I | Driver failed to make annotations when applicable | 7 | 704 | 0.0% |
| 395.5A2-HOSPVIDIT | HOS (Passenger) - Driving for any period after having been on duty 15 hours following 8 consecutive hours off duty at the time of inspection. Time | 7 | 12 | 0.0% |
| 396.3A1-GDRVP | Vehicle with a dripping liquid that vaporizes in the air from a LNG fuel system | 7 | 7 | 0.0% |
| 396.3A1-TFSA | Tires - Front, labeled not for use on steering axle | 7 | 7 | 0.0% |
| 396.9D2-FTF | Failing to correct the violation(s)/defect(s) noted on the roadside inspection report | 7 | 39,271 | 0.0% |
| 397.3 | State/local laws ordinances regulations | 7 | 458 | 0.0% |
| 172.326C1 | No ID# marking on vehicle carrying portable tank | 6 | 14 | 0.0% |
| 173.35F2-HMGP | HM (General Packaging) - Failing to secure Intermediate Bulk Container (IBC) to/within transport unit | 6 | 8 | 0.0% |
| 177.817E2-HMHC | HM (Highway Carriage) - Failing to have HM shipping papers readily accessible. | 6 | 1,466 | 0.0% |
| 177.823A-HMPIHMNBPM | HM (Poison Inhalation Hazard (PIH) Markings) - Required markings are missing on a non-bulk package | 6 | 7 | 0.0% |
| 177.834B | Package not loaded according to orientation marks | 6 | 18 | 0.0% |
| 177.840G-HMHC | HM (Highway Carriage) - Liquid discharge valve not closed during the transportation of Class 2 hazardous materials | 6 | 62 | 0.0% |
| 390.21TB | Carrier name and/or USDOT Number not displayed as required | 6 | 43,169 | 0.0% |
| 392.2C | Failure to obey traffic control device | 6 | 52,268 | 0.0% |
| 392.2SAFCH-MISSG | Coupling - Semi-Trailer, safety devices missing | 6 | 201 | 0.0% |
| 392.2-SLLS2 | State/Local Laws - Speeding 6-10 miles per hour over the speed limit | 6 | 148,715 | 0.0% |
| 392.2-SLLS4 | State/Local Laws - Speeding 15 or more miles per hour over the speed limit | 6 | 57,433 | 0.0% |
| 393.116D3 | Tiedowns improperly positioned on load of shortwood | 6 | 7 | 0.0% |
| 393.120D4 | Improper securement of metal coils transported in rows, eyes lengthwise to the vehicle | 6 | 6 | 0.0% |
| 393.40B | Brakes - no pedal reserve | 6 | 7 | 0.0% |
| 393.45B3 | Brake hose or tubing contacting exhaust system | 6 | 23 | 0.0% |
| 393.47C-BSAMBD | Drum Brake - Slack adjuster length mismatched on the same axle other than a steering axle | 6 | 3,137 | 0.0% |
| 393.48B1 | Defective brake limiting device | 6 | 176 | 0.0% |
| 393.50C | No means to ensure operable check valve | 6 | 1,599 | 0.0% |
| 393.55D2 | CMV manufactured on/after 3/1/2001 not equipped with ABS malfunction circuit / lamp from towed vehicle in cab | 6 | 6,451 | 0.0% |
| 393.60B | Windshield - Missing | 6 | 1,766 | 0.0% |
| 393.65F-F | Fuel - Improper fuel line protection | 6 | 1,663 | 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 ↗