Published 16 Sept 2025
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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:
Make sure your team of drivers and mechanics is trained in vehicle maintenance and emergency troubleshooting.
Download the checklist template and edit it to fit your fleet, from vehicle class requirements to adding items not listed in the template.
Apply the checklist daily and before trips to ensure fleet maintenance is up to date.
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 .
Report defects immediately, schedule them for repair, and sign them off once corrected.
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 PDF Report
Below is a completed CDL checklist template designed for fleet companies that operate across all vehicle classes:
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