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 |
|---|---|---|---|---|
| 172.406A1-HML | HM (Labeling) - Failing to display label as required. | 1 | 67 | 0.0% |
| 172.506A | Offeror failed to provide placards | 1 | 5 | 0.0% |
| 172.514B-HMPS | HM (Placarding) - Failing to placard bulk package when containing residue of HM as required | 1 | 23 | 0.0% |
| 172.516C4 | Placard not located at least 3 inches away from advertising that could reduce its effectiveness | 1 | 177 | 0.0% |
| 172.519D1-HMPMC | HM (Placarding) - The background color, symbol, text, numerals and inner border on a placard must be as specified in 172.521 through 172.560 of this subpart, as a | 1 | 132 | 0.0% |
| 172.602B | Form and manner of Emergency Response information | 1 | 393 | 0.0% |
| 172.604A | ER TELEPHONE # NOT AS REQUIRED | 1 | 298 | 0.0% |
| 173.1B-HMGPR | HM (General Packaging) - Failing to prepare hazardous materials for shipment in accordance with this subchapter as required | 1 | 13 | 0.0% |
| 173.24AA3 | Non-bulk packaging securing and cushioning | 1 | 1 | 0.0% |
| 173.24BD2 | Exceeding the maximum weight of bulk package rating as shown on specification plate | 1 | 15 | 0.0% |
| 173.24F1-HMBPMC | HM (Bulk Packages) - Shipper permits or requires a driver to operate a motor vehicle with the internal valve in the open position | 1 | 1 | 0.0% |
| 173.24F2-HMGP | HM (General Packaging) - Failing to close packagings in accordance with manufacturer's specifications. | 1 | 9 | 0.0% |
| 173.301G-HMGP | HM (General Packaging) - Failing to meet manifolded cylinders in transportation as required. | 1 | 8 | 0.0% |
| 173.30-HMCS | HM (Cargo) - Shipper failed to load HM in conformance as required | 1 | 76 | 0.0% |
| 173.315J-HMGP | HM (General Packaging) - Failing to properly transport residential Liquefied Petroleum Gas (LPG) container for permanent installation. | 1 | 20 | 0.0% |
| 173.33A-HMGP | HM (General Packaging) - Failing to comply with general cargo tank requirements. | 1 | 23 | 0.0% |
| 173.33B | Cargo tank loading requirements | 1 | 4 | 0.0% |
| 177.300A-HMTVMS | HM (Transport Vehicle Markings) - Shipper failed to offer proper markings as required | 1 | 63 | 0.0% |
| 177.801-TRN | Transporting a forbidden material | 1 | 2 | 0.0% |
| 177.823A-HMPMCNP-L6 | HM (Placarding) - Any of the required placards for a hazard class are missing. CVSA Inspection Bulletin 2017-03 - Display of GHS Labels on Bulk Packages | 1 | 109 | 0.0% |
| 177.834L-HMHC | HM (Highway Carriage) - Improperly using cargo heaters when transporting certain HM. | 1 | 1 | 0.0% |
| 177.834M1 | Improper securement of specification 106A or 110A tanks | 1 | 2 | 0.0% |
| 177.834N | Improper loading of specification 56, 57, IM 101, and/or IM 102 portable tanks | 1 | 3 | 0.0% |
| 177.837 | Improper transporting of Class 3 hazardous materials | 1 | 3 | 0.0% |
| 177.837A | FAILING TO STOP ENGINE-LOAD/UNLOAD CLASS 3 | 1 | 5 | 0.0% |
| 177.841-HMHC | HM (Highway Carriage) - Improperly transporting Division 6.1 and 2.3 material | 1 | 1 | 0.0% |
| 177.848F | Violation of Class 1 hazardous materials load separation or segregation requirements | 1 | 3 | 0.0% |
| 178.337-13-HMP | HM (Packaging) - MC 331 supports and anchoring | 1 | 48 | 0.0% |
| 178.337-8A2 | MC331 Outlets | 1 | 4 | 0.0% |
| 178.337-8A3 | MC331 Internal or back flow valve | 1 | 2 | 0.0% |
| 178.338-10A | MC338 Protection of fittings | 1 | 1 | 0.0% |
| 178.338-11B | MC338 Manual shutoff valve | 1 | 5 | 0.0% |
| 178.338-8-HMP | HM (Packaging) - MC 338 pressure release devices - piping/valves/fittings. | 1 | 1 | 0.0% |
| 178.340-8A | MC306/307/312 appurtenances attachment | 1 | 3 | 0.0% |
| 178.341-4D2 | MC 306 pressure activated vents | 1 | 1 | 0.0% |
| 178.341-4D3 | MC 306 no fusible venting | 1 | 1 | 0.0% |
| 178.342-5A | MC307 internal valve | 1 | 1 | 0.0% |
| 178.345-10-HMP | HM (Packaging) - DOT 406/407/412 pressure relief. | 1 | 41 | 0.0% |
| 178.345-11B1III-HMP | HM (Packaging) - DOT 406/407/412 thermal and remote closure. | 1 | 32 | 0.0% |
| 178.345-14B | DOT406/407/412 name plate | 1 | 23 | 0.0% |
| 178.345-5-HMP | HM (Packaging) - DOT 406/407/412 manhole requirements. | 1 | 19 | 0.0% |
| 178.345-8A5 | DOT406/407/412 minimum road clearance | 1 | 163 | 0.0% |
| 178.345-8B | DOT406/407/412 bottom damage protection | 1 | 5 | 0.0% |
| 178.347-3-HMP | HM (Packaging) - DOT 407 manhole assembly requirements | 1 | 1 | 0.0% |
| 178.503 | UN Packaging markings not compliant | 1 | 2 | 0.0% |
| 179.300-13 | DOT106/110aw venting and valves | 1 | 1 | 0.0% |
| 180.352F-HMTMC | HM (Testing) - Failing to properly mark IBC with current test date as required. | 1 | 10 | 0.0% |
| 180.407B | Fail to test/inspect a specification cargo tank when damaged | 1 | 19 | 0.0% |
| 180.415B | Cargo tank test or inspection markings | 1 | 511 | 0.0% |
| 376.11D1 | Lease or Rental Agreement not on board leased or rented CMV | 1 | 5,678 | 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 ↗