Free IL CDL School Bus Practice Test 2025

Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
Based on 2025 IL commercial driver's license manual
Triple-checked for accuracy
Updated for March 2025

If you’re looking to get a School Bus (S) endorsement, you must pass a written knowledge exam that evaluates your understanding of this subject and meet a number of other requirements. Some aspiring school bus drivers find this daunting process more difficult than expected. But with preparation and practice, every challenge can be overcome by those who adopt a systematic approach. We will help you pass the CDL School Bus written test in Illinois so you can fulfill your dream of becoming a school bus driver.
You might already be familiar with the official 2025 CDL manual, but it won’t necessarily help you learn what driving school buses is about. While this manual is an essential piece of the puzzle, it is not enough on its own
Take advantage of every online resource available to you, including our CDL endorsement practice tests. Featuring 20 questions, these tests closely reflect the official exam. Students use them to assess their knowledge and improve their scores over time. You’ll be ready for the actual exam once you consistently achieve passing scores, which is a reliable indicator that you now understand what this subject is about.
One of the standout features of our tests is instant feedback, which provides a detailed explanation of each correct answer. It ensures you understand why a particular answer is right, even if you initially chose the wrong one.
To drive yellow (e.g., full-size) school buses, you must also obtain a Passenger Vehicles (P) endorsement. Our free Illinois CDL school bus practice tests cover a wide range of commercial driving topics, including all endorsements.
Illinois is well-known for having one of the most stringent safety programs for school buses. The Illinois Department of Transportation (IDOT) ensures high safety standards through several methods.
Annual inspections are performed for every school bus, and drivers must complete an 8-hour initial classroom training course. Additionally, they must attend annual refresher courses to stay up-to-date with laws and safety practices. The learning process never truly ends, so it is recommended that you continue practicing on our tests periodically to ensure your knowledge stays fresh throughout the year.

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What to expect on the actual IL DMV exam

questions

correct answers to pass

90%

passing score

Helpful links

IL DMV website

Official Illinois CDL manual (2025)

More IL DMV Written Exam Resources

IL CDL School Bus Test (you are here)

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Our commitment to accuracy and quality in our practice tests

Explore our rigorous, multi-tiered verification process that ensures each question mirrors the official manual for unparalleled accuracy.

Written by Andrei Zakhareuski Updated over a week ago

At Driving-Tests.org, we understand the importance of reliable and accurate practice tests to help you prepare for your DMV exam. That's why we've developed a meticulous process to create and continually update our practice questions, ensuring they reflect the most current driving laws and regulations.

Here's an inside look at how we maintain the highest quality in our practice tests.

Content Creation and Verification Process

Alignment with Official Manuals:
Every question we develop is based on the most recent version of each state's official driving manual. Our team regularly monitors each state DMV's website for the latest updates to ensure our practice tests are always aligned with the most current information.
Community Feedback Integration:
We leverage feedback from our vast community of users to understand which topics are most frequently tested. This helps us focus on the areas that are most relevant and beneficial for your preparation.
Expert Content Creation:
Our in-house editor, Steven, who has extensive experience in driver education, crafts each question with precision. He conducts a thorough review of each question against the official manuals to ensure accuracy.
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After a question goes live on our site, we keep the lines of communication open. Each question features a feedback button, inviting users to report any issues or errors. This continuous feedback loop allows us to address and rectify any concerns promptly.
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In line with our commitment to accuracy, we quickly update our practice questions to reflect any changes in the DMV manuals. Additionally, we update the free electronic copy of the state's driver's license manuals on our site, typically within a few days after the DMV publishes them.

Our thorough quality control process ensures that you have access to practice tests that are as accurate and up-to-date as possible. We believe in the power of well-prepared drivers and are dedicated to providing you with the best study tools to help you succeed on your DMV exam.

FREE IL CDL School Bus Practice Test

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