Trucking safety and FMCSR compliance expert
Expert class library · Transportation · Either side
A former carrier safety director, fleet manager or professional driver who explains the Federal Motor Carrier Safety Regulations and trucking industry practice, and says whether a motor carrier hired, trained, supervised and dispatched its driver the way a reasonable carrier would. Courts generally let experience qualify these witnesses on regulations and industry practice, but confine them to it: opinions on tire or brake failure, crash mechanics or vehicle maintenance belong to engineers and reconstructionists, and an opinion that simply announces the carrier was negligent invites a legal-conclusion objection.
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What this expert is retained to answer
- Which regulations or industry standards does the expert say the carrier or driver violated, and is each opinion tied to a specific record?
- Is the expert qualified by actual carrier safety or fleet experience, or only by driving?
- Does any opinion stray into how the crash happened, tire or brake failure, or vehicle defects, which need an engineer or reconstructionist?
- Does the expert explain the regulations to the jury, or tell the jury what legal conclusion to reach?
- Is the supervision or training opinion connected to the crash, or only to the carrier's general practices?
Methods
- FMCSR compliance review (driver qualification, hours of service, inspection and maintenance files)
- Hiring, training and supervision audit against carrier policy
- Comparison with industry safety practices and commercial driver manuals
- Dispatch, routing and load review
- Post-crash response and hazardous materials procedures review
How the testimony is attacked
- Outside the expert's field. A trucking safety background does not qualify a witness on equipment failure. In Van Winkle v. Rogers the Fifth Circuit upheld limiting a trucking safety expert to the regulations and industry practice and excluding his opinions on why a retreaded tire failed.
- Engineering credentials but no maintenance standard. A mechanical engineer may describe how a component could fail without being qualified to set the standard for a fleet's inspection and maintenance program. In Johnson v. Terminal Investment Corp. the Georgia Court of Appeals affirmed excluding a terminal-truck expert's standard-of-care and brake opinions, which ended the case.
- Within jurors' common knowledge. Carriers argue a jury needs no expert to understand driving safely. In Old Dominion Freight Line v. McMillion the Arkansas Court of Appeals rejected that argument for testimony on how a trucking company trains staff and handles hazardous materials incidents.
- Legal conclusions about negligence. Opinions that a carrier was negligent or violated the law in general terms are attacked as telling the jury what result to reach, so careful experts tie each opinion to a specific regulation, policy and record.
- Speculative link to the crash. A training or supervision failure must connect to the collision. Defendants argue that general criticism of a carrier's safety program does not show the crash would have been avoided.
What the public record shows
Courts have filed at least 440 opinions since 2015 that address this class of testimony under Daubert or Rule 702, as of October 4, 2026. Three that show how courts handle this class of testimony:
| Outcome | Case | Court | Year | Why |
|---|---|---|---|---|
| Admitted | Old Dominion Freight Line, Inc. v. McMillion2025 Ark. App. 268 | Ark. Ct. App. | 2025 | In a suit by officers and a clean-up crew exposed to hazardous materials after a truck crash, the court held the trial court properly allowed a trucking-safety expert to testify about the carrier's training and hazardous materials response, because those subjects are not within jurors' common understanding; it ordered a new trial on damages for other reasons. |
| Limited | Johnson v. Terminal Investment Corp.No. A24A1576 | Ga. Ct. App. | 2025 | The court affirmed limiting a mechanical engineer to opinions on how a terminal truck's cab latch could fail, and excluding his opinions on the brakes and on whether the lessor's inspection and maintenance met the industry standard of care, for lack of qualifications and evidentiary support; without them, summary judgment for the lessor was affirmed. |
| Limited | Van Winkle v. Rogers82 F.4th 370 | 5th Cir. | 2023 | The Fifth Circuit held the district court did not abuse its discretion in allowing a commercial trucking safety expert to testify only about the safety regulations and industry practices, and excluding his opinions on the cause of a retreaded tire's failure, which he admitted were outside his experience. |
Each case links to the free opinion text on CourtListener.
Under amended Rule 702
Since December 1, 2023, Rule 702 says expressly that the party offering an expert must show the court it is more likely than not that the testimony meets each requirement: that it rests on sufficient facts or data, uses reliable methods, and reflects a reliable application of those methods to the case. Questions about the basis of an opinion are no longer automatically matters of weight for the jury. For how the circuits have applied the amendment, see the Rule 702 tracker, which follows each court of appeals; for what that means for preparing or attacking this class of expert, see the guide on amended Rule 702.
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Last reviewed October 4, 2026. How this page is built: rulings are found by searching court opinions on CourtListener, and each one is read in the opinion before it is summarised here; outcomes are labelled by what the court did with the expert's testimony. No individual expert is named. This page summarises public decisions for orientation and is not legal advice; read the opinion before relying on any ruling.