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.
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 |
|---|---|---|---|---|
| 395.8D3-HOSF | HOS (Form) - Record of duty status form failed to include truck or tractor and trailer unit number for each 24 hour period. Date: | 0 | 2,338 | 0.0% |
| 395.8D7-HOSF | HOS (Form) - Record of duty status form failed to include main office address for each 24 hour period. Date: | 0 | 455 | 0.0% |
| 395.8D8-HOSF | HOS (Form) - Record of duty status form failed to include remarks for each 24 hour period. Date: | 0 | 164 | 0.0% |
| 395.8F03 | Driver failed to record date for each 24 hour period | 0 | 79 | 0.0% |
| 395.8F04 | Driver failed to record total miles driven for each 24 hour period | 0 | 918 | 0.0% |
| 395.8F06 | Driver failed to record name of carrier for each 24 hour period | 0 | 321 | 0.0% |
| 395.8F07 | Driver failed to record driver signature/certification for each 24 hour period | 0 | 1,386 | 0.0% |
| 395.8F08III | Driver failed to properly indicate 24 hour period starting time for each 24 hour period | 0 | 20 | 0.0% |
| 395.8F09 | Driver failed to record main office address for each 24 hour period | 0 | 432 | 0.0% |
| 395.8F10 | Driver failed to record days off duty | 0 | 219 | 0.0% |
| 395.8F12 | Driver failed to record shipping document number(s) or name of shipper and commodity for each 24 hour period | 0 | 2,280 | 0.0% |
| 395.8F12-HOSM | HOS (Manner) - Driver's record of duty status failed to record shipping document number(s) or name of shipper and commodity for each 24 hour period. Date: | 0 | 3,488 | 0.0% |
| 395.8F2-HOSMHW | HOS (Manner) - Driver's record of duty status entries are not legible or in the drivers own handwriting. Date: | 0 | 117 | 0.0% |
| 395.8F3-HOSM | HOS (Manner) - Driver's record of duty status failed to record the month, day and year for the beginning of each 24 hour period. Date: | 0 | 64 | 0.0% |
| 395.8F5-HOSM | HOS (Manner) - Driver's record of duty status failed to record truck or tractor and trailer unit number, or license number and state for each 24 hour period. Date | 0 | 1,225 | 0.0% |
| 395.8F6-HOSM | HOS (Manner) - Driver's record of duty status failed to record the name, beginning and finishing time, and AM or PM of every motor carrier for which work is perfo | 0 | 83 | 0.0% |
| 395.8F7-HOSM | HOS (Manner) - Driver's record of duty status failed to record driver signature for each 24 hour period. Date: | 0 | 517 | 0.0% |
| 395.8F9-HOSM | HOS (Manner) - Driver's record of duty status failed to record main office address for each 24 hour period. Date: | 0 | 215 | 0.0% |
| 395.8G-HOSF | HOS (Form) - Driver's record of duty status form failed to include required graph grid or be of sufficient size to be legible. Date: | 0 | 55 | 0.0% |
| 395.8H01 | Driver failed to have a continuous line between appropriate time marker(s). | 0 | 93 | 0.0% |
| 395.8H05 | Driver failed to appropriately indicate location and remarks for changes in duty status. | 0 | 743 | 0.0% |
| 395.8H-HOSM | HOS (Manner) - Driver's record of duty status failed to have a continuous line between appropriate time marker(s). Date: | 0 | 188 | 0.0% |
| 395.8I-HOSM | HOS (Manner) - Driver's record of duty status failed to submit record(s) of duty status to the motor carrier within 13 days | 0 | 57 | 0.0% |
| 396.11 | Driver vehicle inspection report | 0 | 11 | 0.0% |
| 396.13C | No reviewing driver signature on DVIR | 0 | 158 | 0.0% |
| 396.15B-D | Failing to conduct a pre-trip inspection of drive-away/tow-away operation equipment | 0 | 22 | 0.0% |
| 396.1A-IMC | Inspection - Failing to be knowledgeable and/or comply with the requirements of part 396 | 0 | 61 | 0.0% |
| 396.1-KNOWLEDGE | Failing to have knowledge of and comply with the Federal Motor Carrier Safety Regulations (FMCSRs) of this part | 0 | 215 | 0.0% |
| 396.3A1BA | Bolt-type or DD-3 -type Brake Out of Adjustment | 0 | 119 | 0.0% |
| 396.3A1-BACM-L6 | Air Brake - Air compressor mounting brackets have missing or loose mounting bolts. | 0 | 246 | 0.0% |
| 396.3A1-CDUCCG-L6 | Coupling - Upper coupler plate has a crack, or gap caused by corrosion | 0 | 14 | 0.0% |
| 396.5 | Excessive oil leaks | 0 | 1 | 0.0% |
| 396.9C3-I | Inspection - Unauthorized removal of an out-of-service vehicle sticker/decal | 0 | 49 | 0.0% |
| 397.101D | No or incomplete route plan for radioactive materials | 0 | 3 | 0.0% |
| 397.101E2-HMRAMDP | HM RAM (Driving & Parking) - Operating a motor vehicle while not in possession of current and valid HRCQ certificate of training (incomplete/absent/expired). Note | 0 | 2 | 0.0% |
| 397.11A | Hazmat vehicle operated near open fire | 0 | 1 | 0.0% |
| 397.13 | Smoking within 25 ft of HM vehicle | 0 | 85 | 0.0% |
| 397.13A-HMDP | HM (Driving & Parking) - No person may smoke/light/carry a lighted cigarette/cigar/pipe within 25 feet of a motor vehicle containing Class 1, 5, or flammable mate | 0 | 126 | 0.0% |
| 397.13B-HMDP | HM (Driving & Parking) - No person may smoke/light/carry a lighted cigarette/cigar/pipe within 25 feet of an empty motor vehicle which contained Class 3, flammabl | 0 | 28 | 0.0% |
| 397.15A-HMDP | HM (Driving & Parking) - Driver allowed the fueling of a HM motor vehicle while the engine is running | 0 | 1 | 0.0% |
| 397.15B-HMDP | HM (Driving & Parking) - Driver allowed the fueling of a HM motor vehicle without a person in control of the fueling process | 0 | 1 | 0.0% |
| 397.17 | Failure to examine tires on hazmat vehicle before trip | 0 | 4 | 0.0% |
| 397.17A-HMDP | HM (Driving & Parking) - Driver failed to examine each tire at the beginning of each trip and each time the vehicle is parked | 0 | 20 | 0.0% |
| 397.19A-HMDPMC | HM (Driving & Parking) - Motor carrier permit/require a driver to operate a motor vehicle containing Division 1.1, 1.2, or 1.3 with no instructions/documents as r | 0 | 1 | 0.0% |
| 397.19B-HMDP | HM (Driving & Parking) - A driver who receives documents in accordance with paragraph (a) of this section must sign a receipt for them. The motor carrier shall ma | 0 | 2 | 0.0% |
| 397.19C | Required documents or instructions not in drivers possession for Division 1.1, 1.2, or 1.3 hazardous materials | 0 | 2 | 0.0% |
| 397.19C-HMDP | HM (Driving & Parking) - A driver of a motor vehicle which contains Division 1.1, 1.2, or 1.3 materials must be in possession of, be familiar with, and be in comp | 0 | 1 | 0.0% |
| 397.2 | Must comply with rules in Parts 390-397 of the FMCSR when transporting Hazardous Materials | 0 | 4 | 0.0% |
| 397.3AU | Failing to comply with Alliance for Uniform HM Registration requirements | 0 | 32 | 0.0% |
| 397.5C | Unattended hazmat vehicle | 0 | 4 | 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 ↗