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ID CDL School Bus Marathon
- Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
- Based on 2025 ID commercial driver's license manual
- Triple-checked for accuracy
- Updated for May 2025
Get ready for your ID School Bus endorsement exam with this marathon practice test. Unlike our regular practice tests, it’ll cycle through all of the available questions until you have answered all of them correctly. If you miss a question, we’ll show it to you again at a later point.
11 min to complete
Available in EN and ES
Ensuring the accuracy and quality of our program is paramount. Learn more about our rigorous standards in our Commitment to Accuracy article. 
Verified by Steven Litvintchouk,
Chief Educational Researcher, Member of ACES.
Chief Educational Researcher, Member of ACES.
This test is a Premium member exclusive. You'll get:
What to expect on the actual ID DMV exam
20
questions
16
correct answers to pass
80%
passing score
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