A roadside inspection is an examination of a commercial motor vehicle (CMV), its driver or both, carried out by a certified enforcement officer at a fixed weigh station, a temporary inspection site or the side of the road. In North America these inspections follow the Commercial Vehicle Safety Alliance (CVSA) North American Standard, which sorts them into eight levels, from the full Level I inspection to the Level VIII electronic inspection.
Roadside inspections matter because they are the most frequent contact most carriers have with enforcement. Every violation recorded feeds the carrier's safety data, can place a driver or vehicle out of service on the spot, and can influence whether the carrier is selected for an investigation.
What Is a Roadside Inspection?
A roadside inspection checks whether a driver is qualified and fit to drive and whether the vehicle and its cargo meet the Federal Motor Carrier Safety Regulations (FMCSRs) and, where relevant, the Hazardous Materials Regulations. Inspectors are usually state troopers or state motor carrier enforcement officers trained and certified to the CVSA standard. Inspections are funded largely through FMCSA's Motor Carrier Safety Assistance Program, so the results are uploaded to FMCSA's national database and become part of the carrier's record.
Inspectors use the North American Standard Out-of-Service Criteria, published by CVSA and updated each year, to decide whether a condition is serious enough to stop the driver or vehicle from continuing until it is fixed.
The Eight CVSA Inspection Levels
- Level I, North American Standard Inspection: the most thorough inspection. It covers driver credentials, hours of service, alcohol and drug checks, and vehicle items such as brakes, coupling devices, lighting, steering, suspension, tires, wheels and cargo securement, including checks made from underneath the vehicle.
- Level II, Walk-Around Driver/Vehicle Inspection: the same driver and vehicle items as Level I, limited to what can be checked without getting under the vehicle.
- Level III, Driver/Credential/Administrative Inspection: focuses on the driver and paperwork, such as the license, medical certificate, records of duty status and carrier identification.
- Level IV, Special Inspection: a one-time check of a particular item, usually to support a study or to verify a suspected trend.
- Level V, Vehicle-Only Inspection: the Level I vehicle items, done without the driver present, often at a carrier's terminal.
- Level VI, Enhanced NAS Inspection for Radioactive Shipments: required for transuranic waste and highway route controlled quantities of radioactive material, adding radiological requirements to a Level I inspection.
- Level VII, Jurisdictional Mandated Inspection: a program set by a state or province, such as school bus or limousine inspections, that does not fit the other levels.
- Level VIII, Electronic Inspection: data collected wirelessly while the vehicle is moving, with no direct contact with an officer, covering items such as the USDOT number, operating authority, license status and duty status records.
Level VIII is still developing in the United States. FMCSA has been running a voluntary operational test with a small number of states and carriers since 2024, and test data is used for analysis rather than enforcement, so carriers should not yet expect routine Level VIII inspections nationwide.
Outcomes: Clean Inspections, Violations and Out-of-Service Orders
An inspection ends in one of three general outcomes:
- No violations. A clean inspection is recorded and counts in the carrier's favor. After a Level I or Level V inspection with no critical violations, the vehicle may receive a CVSA decal, which generally lets it avoid reinspection for up to three months.
- Violations without out-of-service conditions. The violations are written on the report and the driver may continue, but the carrier must correct them.
- Out-of-service (OOS) orders. If a condition meets the out-of-service criteria, such as defective brakes or a driver over hours limits, the driver or vehicle may not move until the problem is corrected.
Under 49 CFR 396.9, the driver must give the inspection report to the carrier, and the carrier must certify that the violations have been corrected and return the signed report to the issuing agency within 15 days. The carrier keeps a copy for 12 months.
How Inspections Affect CSA Scores
Violations from roadside inspections feed FMCSA's Safety Measurement System, part of the Compliance, Safety, Accountability (CSA) program described on our CSA Safety Measurement System page. Violations are weighted by severity and age and grouped into categories such as Unsafe Driving, Hours-of-Service Compliance and Vehicle Maintenance. Clean inspections help as well, since measures are calculated relative to the number of inspections. Carriers can challenge inaccurate inspection data through FMCSA's DataQs system.
How to Prepare for Roadside Inspections Step by Step
- Keep credentials current. Make sure each driver carries a valid license with the right endorsements and a current medical certificate, and that registration, permits and proof of insurance are in the cab.
- Verify hours-of-service records. Confirm drivers know how to display or transfer ELD data and that logs are accurate and up to date.
- Run thorough pre-trip inspections. Train drivers to check brakes, tires, lights, coupling devices and cargo securement before every trip, and to document defects on a driver vehicle inspection report.
- Fix defects before dispatch. Do not send out a vehicle with known safety defects, especially brake and tire problems, which are among the most common out-of-service conditions.
- Keep up preventive maintenance. Schedule periodic and annual vehicle inspections and keep the records.
- Process inspection reports promptly. Review every report, correct the violations, sign and return it within 15 days, and keep a copy.
- Review trends. Track violations by vehicle, driver and category and act on repeat problems.
Common Mistakes to Avoid
- Treating roadside inspections as random luck rather than a reflection of maintenance and training practices.
- Failing to return signed inspection reports within 15 days.
- Letting drivers carry expired medical certificates or missing permits.
- Ignoring minor violations that add up in CSA measures over time.
- Not challenging clearly inaccurate inspection data through DataQs.
- Skipping brake inspections and adjustment checks, a leading cause of out-of-service orders.
How SMS360 Helps
SMS360's Vehicle Management module keeps vehicle records, maintenance schedules and inspection history in one place, with reminders for upcoming inspections and service. Driver Qualification Files help track license and medical certificate expirations, and Fleet Reports let managers review inspection results and violation trends across the fleet.
Frequently Asked Questions
Which CVSA inspection level is most common?
Level I, II and III inspections make up the large majority of roadside inspections. Level I is the most thorough and is common at fixed inspection sites and during enforcement events such as CVSA's annual International Roadcheck.
What happens if my vehicle is placed out of service?
The vehicle may not be operated until the out-of-service condition is repaired. Depending on the defect, it may be repaired on site or towed. Operating in violation of an out-of-service order carries serious penalties for both the driver and the carrier, and penalties are adjusted annually for inflation.
Do clean inspections help my safety record?
Yes. Inspections with no violations are recorded and help lower CSA measures, because those measures are calculated relative to the number of inspections a carrier receives.
Is a Level VIII electronic inspection used for enforcement today?
Not routinely in the United States. FMCSA is testing Level VIII electronic inspections with a limited number of states and carriers, and has said test data will not affect carrier or driver safety records. Check FMCSA for updates on the program.
