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Published 16 Sept 2025

Article by

Rafael Villamor

|

4 min read

What is a CDL Pre-Trip Inspection Checklist?

A Commercial Driver’s License (CDL) pre–trip inspection checklist is a structured list of guidelines that help drivers ensure their larger commercial vehicles, such as trucks and buses, are safe and in proper working condition before driving. By being road-ready before departure, they can comply with federal regulations, such as the Federal Motor Carrier Safety Administration (FMCSA), and meet safety scores like CSA ratings. This checklist would benefit fleet managers, drivers, employers, and safety managers.

Importance

Vehicles weighing more than 10,000 lbs traveling at highway speeds pose a serious safety hazard for everyone on the road, especially when carrying a heavy load or pulling a trailer.  A CDL pre-trip inspection helps keep these vehicles safe and compliant with road safety standards, ensuring a smooth trip from point A to point B. These inspections must be completed before the vehicle even leaves the lot.

That’s why inspections are so critical, because in 2023 alone, there were 5,375 fatal crashes involving medium and heavy trucks (with a GVWR over 10,000 lbs). This represents a 43% increase over the past 10 years, and a 22% increase in the rate of involvement per 100 million miles traveled by large trucks. By making pre-trip inspections part of every trip, drivers and fleets can help reduce accidents and keep roads safer for everyone.

What to Include in a CDL Pre-Trip Inspection Checklist

Keeping track of what’s compliant, from proper PSI and tire tread depth to the differences between a CDL bus pre-trip inspection and a Class A vehicle inspection, can feel overwhelming before every trip. That’s why knowing exactly what to include in a CDL vehicle inspection checklist is so important, so nothing gets missed.

A CDL pre-trip inspection checklist usually covers the essentials for each vehicle class:

Class A Inspection

This class covers tractor-trailer combinations or any vehicle towing another unit with a GVWR of 10,001 lbs or more, such as a semi-truck with a 53 ft trailer.

  • In-Vehicle/Engine Start

  • Lights Operations Check

  • Front of Vehicle/Engine Area

  • Steering Axle

  • Air Brake Check (A.L.E.G.)

  • Side of Vehicle

  • Combination Vehicles Only

  • Combination/5th Wheel

  • Trailer Only

  • Lenses & Reflectors

  • Emergency Equipment

Class B Inspection

This inspection class encompasses straight trucks or single vehicles with a GVWR of 26,001 lbs or more, towing less than 10,000 lbs, such as a dump truck or delivery truck.

  • In-Vehicle/Engine Start

  • Lights Operations Check

  • Front of Vehicle/Engine Area

  • Steering Axle

  • Air Brake Check (A.L.E.G.)

  • Side of Vehicle

  • Lenses & reflectors

  • Emergency Equipment

Class C Inspection

This inspection class is for vehicles designed to transport 16 or more passengers (including the driver), or vehicles carrying hazardous materials requiring placards, such as school buses or hazmat vehicles.

  • In-Vehicle/Engine Start

  • Lights Operations Check

  • Front of Vehicle/Engine Area

  • Steering Axle

  • Air Brake Check (A.L.E.G.)

  • Side of Vehicle

  • Lenses & reflectors

  • Emergency Equipment

  • Passenger and School Bus Only

  • Trailer/Coupling for Hazmat Vehicles, if applicable

  • Driver Approval

How to Use this Checklist

Commercial Driver’s License pre-trip inspection checklists are long and complex. If drivers, mechanics, or safety officers don’t know what to look for, it’s easy to miss something important. That’s why having proper SOPs in place is so critical when conducting an inspection.

Here’s how to implement a CDL inspection checklist into your business:

  1. Make sure your team of drivers and mechanics is trained in vehicle maintenance and emergency troubleshooting.

  2. Download the checklist template and edit it to fit your fleet, from vehicle class requirements to adding items not listed in the template.

  3. Apply the checklist daily and before trips to ensure fleet maintenance is up to date.

  4. Record and log every vehicle, passenger bus, trailer, cargo, or unit that needs to be repaired. This way, you’d have an organized audit trail where everything is tracked.

  5. Report defects immediately, schedule them for repair, and sign them off once corrected.

  6. Review the checklist regularly and look for improvements, such as using fleet management apps or removing unnecessary steps, to make it more efficient.

Sample CDL Pre-Trip Inspection Report

Below is a completed CDL checklist template designed for fleet companies that operate across all vehicle classes:

CDL Pre-Trip Inspection Sample PDF Report

Preview CDL Pre-Trip Inspection Sample Report

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FAQs About CDL Pre-trip Inspection Checklists

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Article by

Rafael Villamor

SafetyCulture Content Specialist

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