Pre-Trip Inspection
An inspection performed by a CDL driver before beginning a trip to verify the vehicle is in safe operating condition.
Required under 49 CFR Part 396. Covers brakes, tires, lights, steering mechanism, coupling devices, emergency equipment, and load security. The driver must also review the previous post-trip DVIR. Failure to perform a required pre-trip inspection is a violation that can result in an out-of-service order. Results are recorded on the DVIR.
What the inspection must cover
A complete pre-trip inspection covers all major vehicle systems: engine fluid levels and belts; air or hydraulic brake function; tires (inflation, tread depth, lug nuts); all required lighting (headlights, brake lights, turn signals, markers); mirrors and windshields; coupling devices (fifth wheel or other hitch); cargo securement; emergency equipment (fire extinguisher, triangles, flares); and required documentation. For combination vehicles, both the tractor and trailer must be inspected.
Pre-trip inspection and the DVIR
The results of the pre-trip inspection are recorded on the Driver Vehicle Inspection Report (DVIR). Before beginning, the driver must also review the previous vehicle's post-trip DVIR — if defects were noted and repaired, the driver confirms the repair with a signature. A cursory pre-trip that misses defects later cited during roadside inspection creates a record suggesting the inspection was not thorough, which is itself a violation. Strong pre-trip practices directly reduce Vehicle Maintenance BASIC violations in CSA.
Last updated: May 28, 2026
When this definition matters
This term usually matters when a driver, owner-operator, or small carrier is deciding whether a federal rule applies, preparing a compliance file, or checking a state CDL step. Use this definition as a starting point, then confirm the controlling requirement in the official source listed below before making a licensing, hiring, dispatch, or recordkeeping decision.
The related terms above are included because they often appear in the same compliance workflow. Reviewing them together can prevent common mix-ups, such as treating a state licensing step as a federal carrier obligation or confusing a driver record with a separate employer record.