Required for All CDL Drivers

These tests are mandatory for all Commercial Driver's License applicants

Required
📚

General Knowledge

Basic rules, regulations, and safe driving practices for commercial vehicles

6 Practice Tests
Required
🔧

Air Brakes

Air brake systems, inspection, and operation procedures

4 Practice Tests
Required
🔍

Pre-Trip Inspection

Vehicle inspection procedures and safety checks

3 Practice Tests

Endorsement Tests

Additional certifications for specialized commercial driving

🚛

Combination Vehicles

Tractor-trailers, truck and trailer combinations

5 Practice Tests
⚠️

Hazmat

Hazardous materials transportation and safety

4 Practice Tests
🚌

Passenger Vehicles

Buses and vehicles designed to transport passengers

4 Practice Tests
🚌

School Bus

School bus operation and student transportation safety

4 Practice Tests
🚚

Tanker Vehicles

Liquid cargo transportation and tank vehicle operation

3 Practice Tests
🚛

Doubles/Triples

Double and triple trailer combinations

3 Practice Tests
Disclaimer: The practice tests on this website are based on the federal Commercial Driver's License (CDL) manual and are designed to help users in all U.S. states. While most questions reflect national standards, some states may have specific laws, procedures, or requirements not covered here. For the most accurate and up-to-date information, please refer to your state's official CDL handbook. This website is not affiliated with or endorsed by any government agency or the U.S. Department of Transportation.
Note: These practice tests follow the federal CDL manual and work for all states. Some rules may differ in your state. Check your local CDL handbook for exact info. We are not affiliated with any government agency or the U.S. Department of Transportation.