Need a DOT inspection near you in Iowa?
Iowa uses the federal annual model, so you don't need a station. Bright Inspect inspects your truck where it's parked. $99 for one vehicle, with fleet discounts from 2 units.
| Item | Iowa |
|---|---|
| Lead agency | Iowa Department of Public Safety, Iowa State Patrol Commercial Motor Vehicle Unit (CMVU) |
| Federal rules | Broadly adopted for intrastate carriers |
| Who's covered intrastate | 10,000 lb or more; 16 or more persons including the driver; placarded hazmat |
| Annual inspection | Every 12 months, by a qualified inspector |
| FMCSA-accepted state program | No |
| School buses | State inspection twice a year, plus an annual chassis inspection |
Compare Iowa with other states on the state requirements hub, or see which states run their own inspection programs.
The Iowa State Patrol's Commercial Motor Vehicle Unit, part of the Department of Public Safety, enforces motor carrier safety. The Iowa Department of Education runs school bus inspections, and the Iowa Department of Health and Human Services oversees ambulance inspections for EMS service programs.
Yes. Iowa adopts federal Parts 385, 386 and 390 to 399 for intrastate commercial vehicles under Iowa Code 321.449 and 661 IAC chapter 22. Iowa's intrastate coverage starts at 10,000 lb, lower than in many states, with separate triggers for vehicles carrying 16 or more persons including the driver and placarded hazmat.
Iowa exempts some farm equipment, including implements of husbandry and nurse tanks, special mobile equipment, unregistered farm trailers, and certain dealer delivery trucks registered for five tons or less. We're still confirming exactly how Iowa words the weight cutoff. If your truck is right at the line, check with the Iowa State Patrol CMVU directly.
| Operation | Who's covered |
|---|---|
| Interstate | 10,001 lb or more, plus federal passenger and hazmat triggers (49 CFR 390.5) |
| Intrastate (Iowa only) | 10,000 lb or more; 16 or more persons including the driver; placarded hazmat at any weight |
The federal annual covers every covered truck, tractor, trailer, semitrailer and bus at least every 12 months. New vehicles aren't automatically exempt, though qualifying dealer paperwork can serve as the first inspection record. School buses and ambulances have their own state inspections on top of that.
| Inspection | Applies to | How often | Rule |
|---|---|---|---|
| Federal annual | Covered CMVs and each unit in a combination | 12 months | 49 CFR 396.17; Iowa Code 321.449; 661 IAC 22 |
| State school bus inspection | Every vehicle used as a school bus, including contractor vehicles | Twice a year | 281 IAC 43; Iowa Code 285.8 |
| School vehicle chassis inspection | Chassis of vehicles used for student transportation | Annual | 281 IAC 43 |
| Ambulance safety inspection | Ambulances operated by Iowa EMS service programs | At least annually | 641 IAC 132.3 |
The federal annual can be done by an inspector qualified under 49 CFR 396.19, in-house at the carrier or at a commercial repair shop. That's the model Bright Inspect is designed for.
Iowa's state school bus inspections are done by Department of Education inspectors with help from the State Patrol, so a third-party inspection doesn't replace them.
Ambulance inspections can be done by anyone qualified by experience, training or both, and Iowa approves inspection forms that comply with Part 396. Whether a technology-based inspection is acceptable still needs confirmation from Iowa HHS, so ask us before using our inspection for an ambulance.
Keep the annual report 14 months, with proof on the vehicle as the report or a compliant decal. A current annual decal doesn't exempt the vehicle from roadside inspection. School buses get a state inspection sticker once required repairs are done and reported; the latest inspection summary rides in the bus, and the annual chassis inspection goes on a Department of Education form, signed by the mechanic and kept in the glove compartment.
| Vehicle | Rule |
|---|---|
| Tow trucks | We're still confirming Iowa tow truck rules. Check with the Iowa State Patrol CMVU directly. |
| School buses | State inspection twice a year by the Department of Education, annual chassis inspection, and a documented pre-use check on new buses until the first state inspection |
| Ambulances | Annual safety inspection documented on an approved report; an ambulance that fails can't transport patients |
| Passenger carriers | Covered intrastate at 16 or more persons including the driver; passenger carriers still need daily written driver vehicle inspection reports |
Iowa State Patrol CMVU officers inspect commercial vehicles at roadside, at weigh stations and during patrols, and can place an unsafe vehicle out of service. Vehicles below the usual thresholds can still be checked for equipment, registration, size and weight. Federal rules let an officer cite you under 49 CFR 396.17(c) when proof of a current annual inspection isn't on the vehicle; it carries a CSA severity weight of 4. The officer gives the driver an inspection report. The carrier must certify that listed violations were corrected and return it within 15 days, and keep a copy for 12 months (49 CFR 396.9). Fines are set by state law.
We're still confirming roadside fines for a missing annual inspection in Iowa. Check with the Iowa State Patrol CMVU directly.
Stopped without proof of a current annual? See what to do when your inspection expired or failed at roadside and what happens if your annual inspection is expired. Nobody can promise to remove a violation or change a safety score; what fixes the problem going forward is a current inspection and a complete record.
Last reviewed: September 9, 2026