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 violations13,594,393
Out-of-service violations2,416,602
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 |
|---|---|---|---|---|
| 172.606B1-HMER | HM (Emergency Response) - Failing to comply with the carrier contact information requirements when disconnected from motive power. | 0 | 1 | 0.0% |
| 172.704C1-HMTMC | HM (Training) - Motor carrier failed to train HM employees as required | 0 | 68 | 0.0% |
| 173.22A2-HMNBSUP | HM (Non-Bulk Packaging) - Shipper offered for transportation an unauthorized package | 0 | 15 | 0.0% |
| 173.24AB2-HMGP | HM (General Packaging) - Exceed maximum weight/gross mass weighting for non-bulk package(s) | 0 | 1 | 0.0% |
| 173.24AC | Non-bulk package mixed contents requirements | 0 | 3 | 0.0% |
| 173.24B2-HMRAMBP | HM RAM (Bulk Packages) - Operating a motor vehicle when any support and/or anchoring mechanisms are ineffective. NOTE: Do not use if the vehicle is specification | 0 | 21 | 0.0% |
| 173.24B4-HMGP | HM (General Packaging) - HM residue adhering to outside of the package | 0 | 120 | 0.0% |
| 173.24BD2-HMGP | HM (General Packaging) - Exceed maximum weight rating on specification plate. | 0 | 2 | 0.0% |
| 173.25A | Failed to meet overpack conditions | 0 | 26 | 0.0% |
| 173.25A-HMGP | HM (General Packaging) - Failure to meet overpack conditions. | 0 | 28 | 0.0% |
| 173.29A-HMGP | HM (General Packaging) - Improper transportation of an empty package | 0 | 11 | 0.0% |
| 173.301A6-HMGP | HM (General Packaging) - No person may fill a cylinder overdue for periodic requalification with a hazardous material and then offer it for transportation | 0 | 1 | 0.0% |
| 173.301B-HMGP | HM (General Packaging) - Required markings on a cylinder must be legible and must meet the applicable requirements of subpart C of part 180 of this subchapter | 0 | 16 | 0.0% |
| 173.301F-HMGP | HM (General Packaging) - Cylinders must meet pressure relief device systems as required. | 0 | 2 | 0.0% |
| 173.301H-HMGP | HM (General Packaging) - Failing to meet cylinder valve protection as required. | 0 | 63 | 0.0% |
| 173.315A | Fail to comply with Cargo or portable tank Class 2 General requirements | 0 | 3 | 0.0% |
| 173.315A-HMGP | HM (General Packaging) - Failing to comply with cargo or portable tank Class 2 general requirements. | 0 | 2 | 0.0% |
| 173.315J2 | Residential LPG tank over 5% | 0 | 4 | 0.0% |
| 173.315K-HMGP | HM (General Packaging) - Failing to meet non-specification cargo tank requirements for liquefied petroleum gas | 0 | 2 | 0.0% |
| 173.315N2 | No emergency discharge control, other than metered delivery | 0 | 3 | 0.0% |
| 173.315N3 | No emergency discharge control, metered delivery | 0 | 9 | 0.0% |
| 173.315N-HMGP | HM (General Packaging) - Failing to comply with emergency discharge control requirements for cargo tank motor vehicle in liquefied compressed gas service. | 0 | 34 | 0.0% |
| 173.315P-HMGP | HM (General Packaging) - Failing to comply with thermal means of closure for each internal self-closing stop valve. | 0 | 2 | 0.0% |
| 173.318B10-HMGPMC | HM (General Packaging) - Failing to mark inlet/outlet valves on cryogenic cargo tank as required | 0 | 9 | 0.0% |
| 173.31D | Retesting for multiunit tank car tanks | 0 | 4 | 0.0% |
| 173.32A2-HMGP | HM (General Packaging) - Filling or offering a portable tank for transportation when the periodic test have become expired. | 0 | 10 | 0.0% |
| 173.32BA | IM portable tank periodic testing | 0 | 1 | 0.0% |
| 173.32G1 | Portable tank extending outside transport vehicle | 0 | 1 | 0.0% |
| 173.32H1-HMGP | HM (General Packaging) - Failing to comply with product specific requirements for portable tanks. Liquefied compressed gas | 0 | 1 | 0.0% |
| 173.32H3-HMGP | HM (General Packaging) - Failing to comply with product specific requirements for portable tanks. Class 3, 5.1 or 6.1. | 0 | 2 | 0.0% |
| 173.33C2-HMGP | HM (General Packaging) - Failing to mark MAWP/design pressure in accordance with this Subchapter for MC 300 series cargo tanks | 0 | 1 | 0.0% |
| 173.34C | VOID Cylinder markings | 0 | 1 | 0.0% |
| 173.35A | Intermediate bulk container requirements | 0 | 6 | 0.0% |
| 173.35D-HMGP | HM (General Packaging) - Liquid filled Intermediate Bulk Container (IBC) with Ullage over 98% | 0 | 1 | 0.0% |
| 173.36D2-HMGP | HM (General Packaging) - Each Large Packaging must be securely fastened to or contained within the transport unit | 0 | 2 | 0.0% |
| 173.40 | General requirements Poison Inhalation Hazard Zone A or B in cylinders | 0 | 1 | 0.0% |
| 173.412-HMGPS | HM RAM (General Packaging) Failing to meet general design requirements for Type A package. | 0 | 3 | 0.0% |
| 173.443A | Radioactive contamination exceeds limits | 0 | 1 | 0.0% |
| 173.5AB2-HMGPR | HM (General Packaging) - Failing to have the description on the shipping paper for a meter prover containing residue of a hazardous material include the phrase R | 0 | 1 | 0.0% |
| 173.5AB7-HMGPR | HM (General Packaging) - Failing to have each meter prover successfully completing the external visual inspection and the pressure test must be marked as required | 0 | 7 | 0.0% |
| 173.5AC4-HMGPR | HM (General Packaging) - Failing to have a non-DOT specification cargo tank used for roadway striping marked as required. | 0 | 1 | 0.0% |
| 173.5AC5-HMGPR | HM (General Packaging) - Failing to have a non-DOT specification cargo tank meet operational controls as required. | 0 | 2 | 0.0% |
| 173.60 | General packaging requirements explosives | 0 | 2 | 0.0% |
| 173.60-HMGP | HM (General Packaging) - Failing to follow general packaging requirements for explosives | 0 | 6 | 0.0% |
| 177.800C-HMTMC | HM (Training) - Motor carrier failed to comply with HM regulations | 0 | 95 | 0.0% |
| 177.802-HMHC | HM (Highway Carriage) - Records, equipment, packagings and containers under the control of a motor carrier, insofar as they affect safety in transportation of HM | 0 | 11 | 0.0% |
| 177.804 | Failure to comply with FMCSR 49 CFR part 383 and 49 CFR parts 390 through 397 | 0 | 5 | 0.0% |
| 177.804A | Failure to comply with FMCSR 49 CFR Parts 390 through 397 When Transporting HM | 0 | 44 | 0.0% |
| 177.804A-CDL | Failure to comply with 49 CFR Part 383 Commercial Drivers License Provisions When Transporting HM | 0 | 6 | 0.0% |
| 177.804B1 | Failure to comply with the Safe Clearance requirements for highway-rail grade crossings in 49 CFR Section 392.12 | 0 | 30 | 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 ↗