Federal DOT Inspection Requirements: DVIR, Annual, and Roadside

Federal DOT inspection requirements apply to commercial motor vehicles operating in interstate commerce and come in three layers: a pre-trip and end-of-day check by the driver, a full periodic inspection at least once every 12 months by a qualified inspector, and roadside inspections that enforcement officers can conduct at any time. The rules sit in 49 CFR Parts 390 through 399. Failing any layer can put your vehicle out of service on the spot and expose the carrier to civil penalties that in 2026 reach $19,246 per violation, with higher ceilings for out-of-service and hazardous materials cases.

Which Vehicles Are Covered

The rules apply to any “commercial motor vehicle” as defined in 49 CFR 390.5. A vehicle qualifies if it meets any one of four thresholds:

A gross vehicle weight rating, gross combination weight rating, gross vehicle weight, or gross combination weight of 10,001 pounds or more.
Designed or used to transport more than 8 passengers, including the driver, when carrying passengers for compensation.
Designed or used to transport more than 15 passengers, including the driver, when not carrying passengers for compensation.
Used to transport hazardous materials in quantities requiring placarding.

Meeting just one threshold triggers the entire framework.¹ The passenger thresholds catch smaller operators off guard. A 15-passenger van used for a paid charter falls under FMCSA jurisdiction; the same van on a free shuttle does not.

Every covered carrier must also run a systematic program for inspecting, repairing, and maintaining every vehicle under its control, and keep records showing the vehicle’s identification, the schedule and due dates for inspections, and a log of repairs.²

Daily Driver Inspections and the DVIR

Before operating a commercial motor vehicle, the driver must be satisfied it is in safe operating condition and must review the most recent driver vehicle inspection report if one exists. If the prior report listed defects, the driver signs it to confirm the repairs were completed.³

At the end of each day, the driver prepares a written Driver Vehicle Inspection Report for every vehicle operated that day. The report identifies the vehicle and lists any defect that could affect safe operation or cause a mechanical breakdown. If nothing is wrong, no written report is required.⁴

When a defect is reported, the carrier must either repair it or certify in writing that the defect does not affect safe operation before the vehicle goes back on the road. The certification goes directly on the report.⁴

Three operations are exempt from the daily report requirement: private motor carriers of passengers operating for nonbusiness purposes, driveaway-towaway operations, and carriers operating only a single commercial motor vehicle.⁴

Annual Periodic Inspection

Every commercial motor vehicle must pass a comprehensive periodic inspection at least once every 12 months. Each unit in a combination counts separately. A tractor pulling a semitrailer and a full trailer needs three inspections: the tractor, the semitrailer, and the full trailer with its converter dolly if equipped.⁵

The inspection must cover, at minimum, every component listed in Appendix A to Part 396. You cannot put a vehicle into service unless each covered component passed inspection within the preceding 12 months and proof is on the vehicle. Documentation can be the original inspection report or a decal showing the inspection date, the name and address of the entity keeping the report, vehicle identification if not already on the vehicle, and a certification that the vehicle passed.⁵

A state periodic inspection program that meets Appendix A standards satisfies the federal requirement. If your vehicle passes a qualifying state inspection, that covers the federal annual requirement for 12 months starting from the last day of the month the inspection occurred.⁵

What Inspectors Check

Appendix A to Part 396 sets the minimum standards, and the same standards drive roadside enforcement.

Brakes

Inspectors look for missing or broken parts such as shoes, linings, pads, springs, anchor pins, push-rods, and air chamber mounting bolts, plus loose components like air chambers and camshaft support brackets. Any audible air leak at a brake chamber, including a ruptured diaphragm or loose clamp, is a deficiency.⁶ Brakes must also be within adjustment limits. A vehicle or combination goes out of service when 20 percent or more of its service brakes are defective.

Tires and Wheels

Steering-axle tires on trucks, buses, and truck tractors need at least 4/32 of an inch of tread depth measured at any point on a major tread groove. All other tires need at least 2/32 of an inch.⁷ A tire with exposed body ply or belt material through the tread or sidewall, or a cut deep enough to expose ply material, fails. Wheels and rims must be secure with no cracks or missing components.

Lights, Steering, Suspension, and Coupling

All required lights and reflectors must work. The steering system cannot have excessive free play, cracks, or more than a quarter-inch of non-rotational movement at any linkage attachment point. Suspension components including leaf springs, coil springs, and U-bolts must be intact and secure. On combination vehicles, coupling devices such as fifth wheels, pintle hooks, and drawbars must be properly mounted with no defects that could allow separation.⁶

Who Can Perform the Annual Inspection

Not just anyone can sign off. The inspector must understand the standards in Part 393 and Appendix A, know the methods and tools, and meet one of two experience thresholds: completion of a federal or state-sponsored training program (or a state or Canadian provincial certificate), or at least one year of combined training and experience in commercial vehicle maintenance or inspection.⁸ Qualifying experience can come from manufacturer training, mechanic work in a carrier’s maintenance program, time at a commercial garage or fleet leasing company, or government inspection work.

Brake inspectors face a separate but overlapping requirement under 49 CFR 396.25: an apprenticeship or approved training program, or at least one year of brake-specific training and experience. Passing the air brake knowledge and skills tests on a CDL also satisfies the brake inspector requirement.⁹

Roadside Inspections and CVSA Levels

Enforcement officers can pull a commercial vehicle over at any time. Roadside inspections follow standardized levels developed by the Commercial Vehicle Safety Alliance, which represents government inspectors in the U.S., Canada, and Mexico.

Level I, North American Standard. The most thorough. Covers the driver (license, medical certificate, hours of service, alcohol and drug compliance) and every major vehicle system, including brakes, tires, lights, steering, suspension, coupling, cargo securement, exhaust, frame, and fuel systems. The inspector gets under the vehicle.
Level II, Walk-Around. Same driver and vehicle items as Level I, but only what’s accessible without going underneath.
Level III, Driver/Credential Only. License, medical certificate, hours-of-service records, seat belt, and carrier identification. No mechanical check.
Level IV, Special. A one-time examination of a specific item, usually tied to a research study or a suspected trend.
Level V, Vehicle Only. All Level I vehicle components, without the driver present. Can be done at any location.
Level VI, Radioactive Materials. A specialized inspection for shipments of transuranic waste and highway route controlled quantities of radioactive material, adding radiological checks on top of Level I.

¹⁰

A vehicle that passes a Level I, V, or VI inspection with no critical violations earns a CVSA decal, valid for up to three consecutive months. Vehicles displaying a valid decal generally will not be pulled for re-inspection, though inspectors keep the authority to do so. Only certified inspectors who completed CVSA-approved training can affix the decals. A clean Level II or III inspection does not qualify for a decal.¹¹

Penalties

FMCSA penalties for inspection and maintenance violations hit carriers and drivers separately, and dollar amounts adjust annually for inflation. The figures below reflect the 2026 adjustment published in February 2026.

A non-recordkeeping violation of Parts 390 through 399, which includes failing to maintain a vehicle to standards, operating without a current annual inspection, or having defective equipment, carries a civil penalty of up to $19,246 per violation. Recordkeeping violations, such as failing to maintain inspection reports or keeping incomplete records, can reach $15,846 per day the violation continues.¹²

Operating a vehicle after it has been placed out of service, before the required repairs are made, carries a penalty of up to $2,364 each time the vehicle is operated. For the carrier that requires or allows that operation, the penalty rises to up to $23,647 per occurrence. The same structure applies when a driver personally placed out of service keeps operating. Falsifying a written certification that out-of-service repairs were completed carries the same $23,647 ceiling and can trigger federal criminal prosecution under 18 U.S.C. 1001.¹³

A carrier that receives a final “unsatisfactory” safety rating and continues operating faces up to $34,116 per day for general interstate operations. Placarded hazardous materials raise the ceiling to $102,348 per offense, and if the violation causes death, serious injury, or substantial property destruction, penalties can reach $238,809 per offense.¹²

Records and How Long to Keep Them

When a driver files a DVIR listing a defect, the carrier keeps the original report, the certification of repairs, and the driver’s signed acknowledgment of review for three months from the date the report was prepared.⁴

The annual periodic inspection report identifies the inspector, the carrier, the vehicle, the inspection date, every component inspected, and the results, including any component that failed to meet minimum standards. Keep a copy for 14 months from the inspection date, at the location where the vehicle is housed or maintained.¹⁴

General maintenance and inspection records for each vehicle must be kept for one year at the location where the vehicle is housed or maintained. When a vehicle leaves the carrier’s control by sale, trade-in, or any other transfer, those records must be retained for an additional six months after the vehicle departs.² This is the requirement carriers most often miss by accident. The vehicle is gone, the paperwork gets tossed. Don’t toss it.

Evidence of each annual inspector’s qualifications must be kept for the entire period that person performs inspections plus one year after they stop. Carriers using a state periodic inspection program do not need to keep qualification records for inspectors working under that program.⁸

Electronic DVIRs

Under 49 CFR 390.32, electronic records and signatures are valid as long as the documents accurately reflect the required information, can be retained and reproduced within required timeframes, and include proof of the signer’s consent to use electronic methods.¹⁵

A final rule published in February 2026 amended sections 396.11 and 396.13 to confirm that driver vehicle inspection reports may be created and maintained electronically under the 390.32 framework. The rule took effect on March 23, 2026.¹⁶ Electronic DVIRs now carry the same legal standing as handwritten ones, provided your system can authenticate the signer and produce the record on demand for any party entitled to see it.

1
eCFR. 49 CFR 390.5 – Definitions
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eCFR. 49 CFR 396.3 – Inspection, Repair, and Maintenance
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eCFR. 49 CFR 396.13 – Driver Inspection
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eCFR. 49 CFR 396.11 – Driver Vehicle Inspection Report(s)
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eCFR. 49 CFR 396.17 – Periodic Inspection
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eCFR. 49 CFR Part 396 – Inspection, Repair, and Maintenance – Appendix A
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eCFR. 49 CFR 393.75 – Tires
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eCFR. 49 CFR 396.19 – Inspector Qualifications
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eCFR. 49 CFR 396.25 – Qualifications of Brake Inspectors
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Commercial Vehicle Safety Alliance. All Inspection Levels
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Commercial Vehicle Safety Alliance. About Inspection Decals
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Legal Information Institute. 49 CFR Appendix B to Part 386 – Penalty Schedule: Violations and Monetary Penalties
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Legal Information Institute. 49 CFR Appendix A to Part 386 – Penalty Schedule: Violations of Notices and Orders
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eCFR. 49 CFR 396.21 – Periodic Inspection Recordkeeping Requirements
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eCFR. 49 CFR 390.32 – Electronic Documents and Signatures
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Federal Register. Electronic Driver Vehicle Inspection Reports