DOT Out-of-Service Violations in Truck Cases

Commercial trucks are inspected at roadside checkpoints, weigh stations, and carrier terminals across the country, and when an inspector finds a defect serious enough to create an immediate danger, the inspection becomes an out-of-service order. That order is a government inspector’s written, contemporaneous finding that a truck or driver was unsafe, and it can become evidence in a truck accident case.

DOT Out-of-Service Orders

An out-of-service order takes a commercial vehicle or driver off the road until the problem is fixed. For vehicles, 49 CFR 396.9 requires authorized personnel to declare and mark out of service any motor vehicle that, by reason of its mechanical condition or loading, would likely cause an accident or a breakdown.

Drivers are sidelined the same way. Under 49 CFR 395.13, a driver who has exceeded federal driving-time limits is ordered out of service, and no carrier may require or permit that driver to operate a commercial motor vehicle until the driver can lawfully do so again. Inspectors apply the North American Standard Out-of-Service Criteria, published by the Commercial Vehicle Safety Alliance.

The same standard gives weight to a clean result. When a vehicle clears a full inspection with no critical violations, the inspector affixes a CVSA decal, a visible certification that it passed the standard used to sideline unsafe trucks.

Common Out-of-Service Violations

Out-of-service violations fall into two categories: defects on the vehicle and problems with the driver. Both end the trip on the spot, and both leave a record.

Vehicle Violations

The most common vehicle out-of-service violations involve the systems that keep an 80,000-pound truck controllable:

• Brakes that are out of adjustment, leaking air, or fitted with cracked drums.
• Tires with worn tread, sidewall damage, or severe underinflation.
• Inoperable headlamps, brake lights, and clearance lights.
• Steering components with excessive play or visible wear.
• Cargo that is overweight, unsecured, or improperly tied down.
• Cracked frames or defective coupling devices between tractor and trailer.

Brake problems lead the enforcement data. In the 2025 International Roadcheck results, brake systems were the most-cited vehicle out-of-service violation in North America at 24.4% of all vehicle out-of-service violations, with tires second at 21.4%. Inspectors identified 2,899 tire-related out-of-service violations.

Driver Violations

Drivers are placed out of service for problems with their qualifications and their logs. In the same 2025 Roadcheck data, hours-of-service violations were the top driver out-of-service category at 32.4% of all driver out-of-service violations. A falsified record of duty status hides how long a driver has been behind the wheel, which defeats the purpose of the fatigue rules.

FMCSA Tracking of Repeat Violators

The federal government tracks carrier safety over time through Compliance, Safety, Accountability, the FMCSA’s safety compliance and enforcement program. The Safety Measurement System uses roadside inspection and crash data from the last two years and organizes it into seven Behavior Analysis and Safety Improvement Categories. Every out-of-service order feeds that system, so a company whose trucks keep failing inspections builds a time-stamped record of its own maintenance and supervision failures.

Much of that record is public. The FMCSA’s SAFER Company Snapshot is a free electronic record of a carrier’s identification, size, and safety record, including its safety rating, a roadside out-of-service inspection summary, and crash information. The firm’s article on reading an FMCSA SMS report explains how those scores are laid out.

Out-of-Service Violations as Negligence Evidence

A Kentucky truck accident case requires evidence that the carrier or driver failed to use ordinary care, and an out-of-service order supplies a government inspector’s written finding that the truck or driver was unsafe. The strongest version is a crash involving a truck or driver under an active out-of-service order, because 49 CFR 396.9 prohibits a carrier from requiring or permitting anyone to operate a vehicle marked out of service until it is repaired.

Penalties for Ignoring an Out-of-Service Order

Federal law attaches penalties to operating under an out-of-service order. Under the civil penalty schedule in Appendix B to 49 CFR Part 386, a CDL holder convicted of violating an out-of-service order faces a civil penalty of not less than $3,961 for a first conviction, and an employer that knowingly allows a driver to operate during the order faces a penalty of not less than $7,155. For the injured person, the violation can support more than an ordinary negligence claim: Kentucky’s punitive damages statute, KRS 411.184, permits punitive damages where clear and convincing evidence shows the defendant acted with oppression, fraud, or malice.

Driver Vehicle Inspection Reports

Under 49 CFR 396.11, a driver must prepare a written inspection report at the end of each day’s work, and the carrier must certify that any listed defect was repaired, or that repair was unnecessary, before the vehicle runs again. A defect noted on one driver vehicle inspection report and left unaddressed on the next builds a documented timeline of what the carrier knew and when.

Records of Out-of-Service Violations

Out-of-service evidence sits in specific documents, each held by someone with no reason to volunteer it:

• The SAFER Company Snapshot.
• Roadside inspection reports listing every violation found.
• Driver vehicle inspection reports required by 49 CFR 396.11, with the carrier’s repair certifications.
• Carrier maintenance files required by 49 CFR 396.3, showing what the company knew about each vehicle and when.

The retention windows are short. A carrier must keep inspection reports and repair certifications for three months under 49 CFR 396.11, and maintenance records for 1 year, plus 6 months after the vehicle leaves the carrier’s control, where the vehicle is housed or maintained. A litigation hold letter to the carrier and its insurer keeps inspection reports, inspection logs, maintenance files, and electronic logging data from aging out of those windows.