Inspection, Repair & Maintenance 

Trucking Workers

This page covers the following topics:

  • Overview
  • General Requirements
  • Record Maintenance Requirements
  • Driver Vehicle Inspection & Inspection Report Requirements
  • Periodic Inspection Requirements


DOT regulations require motor carriers to inspect, repair, and maintain their vehicles, and to keep records of such inspection, repair, and maintenance.

General Requirements

The following general inspection, repair, and maintenance requirements must be observed by motor carriers:

  • Every motor carrier, and its employees directly concerned with the inspection or maintenance of commercial motor vehicles, must be knowledgeable of and comply with the rules regarding inspection, repair, and maintenance.
  • Every motor carrier must systematically inspect, repair, and maintain (or cause to be systematically inspected, repaired, and maintained) all motor vehicles subject to its control:
    • Inspection, repairs, and maintenance must be performed in a manner to ensure that parts and accessories are in safe and proper operating condition at all times. These include those specified in DOT regulations 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.
    • Commercial motor vehicles must not be operated in such a condition as to likely cause an accident or a breakdown of the vehicle. Pushout windows, emergency doors, and emergency door marking lights in buses must be inspected at least every 90 days.
    • Every motor carrier must ensure that each motor vehicle subject to its control is properly lubricated and free of oil and grease leaks.

Record Maintenance Requirements  

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