DVIR Requirements Under FMCSA: What Drivers Must Do

The driver vehicle inspection report is one of the shortest rules in the federal regulations and one of the most often broken. It asks drivers to report defects at the end of the day, carriers to fix and certify them before the truck runs again, and the next driver to check the paperwork before pulling out. Each step is simple. The violations come from the gaps between them: a defect reported but not certified, a trailer left off the report, a book thrown out too early. This guide sets out what 49 CFR 396.11 and 396.13 require, which parts each report covers on tractors, trailers and intermodal chassis, what an electronic DVIR needs, the common failures, and a checklist you can use as a template. To see FleetRabbit’s digital DVIR, book a short demo with our team.

What the regulations actually say, clause by clause

Here are the core requirements, paraphrased from the current text of Part 396.

The rule applies to every motor carrier, with exceptions for private passenger carriers operating non-business vehicles, driveaway-towaway operations, and carriers operating only one commercial motor vehicle.

The parts every DVIR must cover, on the tractor, the trailer and the chassis

Section 396.11(a) lists the minimum parts and accessories for motor carrier equipment. Intermodal chassis tendered by an equipment provider have their own list under 396.11(b).

Fleets can, and usually should, inspect more than the minimum. Tread depth, air leaks, mud flaps and cargo securement aren’t on the federal list, but they appear in roadside inspections all the time.

Pre-trip review versus post-trip report: what each one requires

The pre-trip doesn’t need its own form under the federal rule, but it does need to happen. Many fleets record it anyway, because it’s the moment a driver can refuse a unit that isn’t safe.

What an electronic DVIR needs to do to meet the rule

FMCSA’s final rule on electronic DVIRs, published in February 2026, made it explicit that reports may be created and kept electronically under 49 CFR 390.32. The content requirements didn’t change. An app has to capture the same six things a paper book does.

FleetRabbit’s DVIR and DOT inspection app covers pre-trip and post-trip inspections, defect photos, electronic driver signatures and mechanic sign-off on repairs, with records kept digitally.

Five DVIR failures auditors and inspectors find most

Drop-and-hook, slip seats and team drivers: who reports what

The rule is written around a driver and a vehicle, which gets complicated when trailers and drivers change through the day. A few cases come up constantly. In drop-and-hook operations, the driver who pulled a trailer during the day reports defects on it at the end of that day’s work, even if a different driver will hook it next. In a slip-seat operation, where several drivers share a tractor, each driver reports on the shift they drove, and the next driver reviews the last report before leaving the yard. Team drivers can submit one report signed by one driver, as long as both agree on the defects. And when a container chassis goes back to the equipment provider, the defect report goes to the provider, who must repair and certify it before tendering the chassis again. In each case, the question to ask is the same: who drove it last, and did the next person see what they found?

What happens at the roadside when the DVIR trail is broken

Roadside inspectors don’t usually ask to see last month’s reports, but they do find the defects those reports should have caught. A brake chamber leaking at the roadside, or a trailer lamp that has clearly been out for days, raises the question of whether the defect was reported and ignored. During an investigation or audit, the same defect turns up a second time, on a report with no repair certification. That pattern can show up in the Vehicle Maintenance category of a carrier’s safety scores, and, for a new carrier, operating a vehicle without fixing DVIR out-of-service defects fails the audit outright.

Three months of records, and why longer is better

The legal minimum is three months from the date of each report. In practice, many fleets keep DVIRs as long as the unit’s maintenance file, because a defect that keeps coming back on the same trailer only shows up when you can see more than three months at once.

A DVIR requirements checklist you can use as a template

Where FleetRabbit fits DVIR compliance

DVIR requirements questions from drivers and fleet managers