What a truck PM service means
Truck PM service, on this page, means that preventive maintenance duty. 49 CFR 396.3(a)(1) says parts and accessories shall be in safe and proper operating condition at all times. Those include the parts specified in 49 CFR 393 and any additional parts and accessories which may affect safety of operation, including but not limited to frame and frame assemblies, suspension systems, axles and attaching parts, wheels and rims, and steering systems. 49 CFR 396.5 says each motor vehicle subject to the control of the carrier must be properly lubricated and free of oil and grease leaks. Part 396 does not set an oil-change mileage or a shop price.
The primary text is 49 CFR Part 396. How a roadside inspection works is covered in DOT inspections. A related page on this site is how to fix a bad CSA score.
What 49 CFR Part 396 requires
Part 396 does not publish a mileage price table. The rows below are duties and time periods stated in the regulation. They are not a repair menu and not a quote from Truck Dispatch Experts.
| Rule | What the rule says | Section |
|---|---|---|
| Systematic program | Systematically inspect, repair, and maintain every motor vehicle subject to the control of the carrier. Parts and accessories stay in safe and proper operating condition at all times. | 396.3(a) |
| Maintenance record | Identify the vehicle. Show the nature and due date of each inspection and maintenance operation. Record the date and nature of inspections, repairs, and maintenance. | 396.3(b) |
| How long to keep the record | Keep the 396.3 records where the vehicle is housed or maintained for 1 year, and for 6 months after the vehicle leaves the control of the motor carrier. | 396.3(c) |
| End-of-day driver report | Written report at the completion of each day of work on the parts listed in 396.11. No report is required when no defect is found. Keep it for three months. | 396.11 |
| Before the driver moves the truck | The driver must be satisfied the vehicle is in safe operating condition, review the last report when one is required, and sign it. | 396.13 |
| Periodic inspection | Do not use the vehicle unless each appendix A item has passed an inspection at least once during the preceding 12 months, with documentation on the vehicle. Keep the inspection report for 14 months. | 396.17 and 396.21 |
| Lubrication | Each motor vehicle subject to the control of the carrier must be properly lubricated and free of oil and grease leaks. | 396.5 |
Warning: 49 CFR 396.7 says a motor vehicle shall not be operated in such a condition as to likely cause an accident or a breakdown. If the unsafe condition is discovered while the vehicle is being operated, it may continue only to the nearest place where repairs can safely be effected, and only when that is less hazardous to the public than leaving the vehicle on the highway.
Who does the inspection and the repair
Carrier duty under 396.3
49 CFR 396.3(a) requires every motor carrier to systematically inspect, repair, and maintain, or cause to be systematically inspected, repaired, and maintained, all motor vehicles subject to its control. Parts and accessories must be in safe and proper operating condition at all times, including frame and frame assemblies, suspension systems, axles and attaching parts, wheels and rims, and steering systems.
Repair before the next trip
49 CFR 396.11(a)(3) says that before a carrier requires or permits a driver to operate a vehicle, the carrier or its agent shall repair any defect or deficiency listed on the driver vehicle inspection report which would be likely to affect the safety of operation of the vehicle, and shall certify that the defect has been repaired or that repair is unnecessary.
What the driver must report
49 CFR 396.11(a) lists the parts the report at the completion of each day of work must cover: service brakes including trailer brake connections, parking brake, steering mechanism, lighting devices and reflectors, tires, horn, windshield wipers, rear vision mirrors, coupling devices, wheels and rims, and emergency equipment. If no defect or deficiency is discovered by or reported to the driver, the driver does not have to prepare a report. The carrier keeps the report, the certification of repairs, and the certification of the driver review for three months.
Documentation on the vehicle
49 CFR 396.17(c) says the carrier must not use a commercial motor vehicle unless each component identified in appendix A has passed an inspection at least once during the preceding 12 months and documentation of that inspection is on the vehicle. The documentation may be the inspection report, or another form such as a sticker, showing the date, the name and address where the report is maintained, information identifying the vehicle, and a certification that the vehicle passed an inspection in accordance with 49 CFR 396.17.
When the truck must not be operated
Unsafe operation is forbidden
49 CFR 396.7(a) says a motor vehicle shall not be operated in such a condition as to likely cause an accident or a breakdown. If an unsafe condition is discovered while the vehicle is being operated, 49 CFR 396.7(b) allows continued operation only to the nearest place where repairs can safely be effected, and only if that is less hazardous to the public than leaving the vehicle on the highway.
Tread that fails the periodic inspection
Appendix A to Part 396 says a vehicle does not pass the periodic inspection if a tire on any steering axle of a power unit has less than 4/32 inch tread when measured at any point on a major tread groove, or if any other tire has less than 2/32 inch tread measured the same way. A tire that is flat or has a noticeable leak also fails that inspection. Those are pass-fail standards for the periodic inspection, not a fine schedule.
The out-of-service sticker
49 CFR 396.9(c) says authorized personnel shall declare and mark out-of-service any motor vehicle which by reason of its mechanical condition or loading would likely cause an accident or a breakdown. No motor carrier shall require or permit any person to operate that vehicle, and no person shall operate it, until all repairs required by the out-of-service notice have been satisfactorily completed. No person shall remove the Out-of-Service Vehicle sticker before those repairs are completed.
Certify the roadside inspection
49 CFR 396.9(d)(3) says that within 15 days following the date of the inspection, the motor carrier shall certify that all violations noted have been corrected by completing the signature, title, and date portions of the form. If the issuing state agency requests it, the carrier returns the completed form. In all instances the carrier retains a copy for 12 months from the date of the inspection.
Records the carrier has to keep
49 CFR 396.3(b) requires a record for each motor vehicle the carrier controls for 30 consecutive days, except a private motor carrier of passengers (nonbusiness). The record must identify the vehicle, including company number if so marked, make, serial number, and year, and, if the carrier does not own the vehicle, the name of the person furnishing it. It must indicate the nature and due date of the various inspection and maintenance operations to be performed, and it must record inspections, repairs, and maintenance indicating their date and nature.
Record retention under 49 CFR 396.3 is where the vehicle is housed or maintained, for 1 year and for 6 months after the vehicle leaves the control of the motor carrier. For a different topic, see the insurance and cost guide.
49 CFR 396.21 says the original or a copy of the periodic inspection report is retained for fourteen months from the date of the report, where the vehicle is housed or maintained, and must be available upon demand of an authorized Federal, State, or local official. A related page on this site is why owner-operators fail.
Key takeaway: 49 CFR 396.3(b)(2) requires a means to indicate the nature and due date of the inspection and maintenance operations to be performed. Part 396 does not publish an oil-change mileage or a price.
Related Resources
- How to Pass a DOT Inspection — Levels, checklist, and violation guide
- How to Fix a Bad CSA Score — Repair your safety rating fast
- Trucking Insurance Guide — Coverage and cost optimization
- Why Owner-Operators Fail — Avoid the top business killers