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OK CDL School Bus Marathon

What to expect on the actual OK CDL exam

  • 20questions
  • 16correct answers to pass
  • 80%passing score

Get ready for your OK 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.

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OK commercial driver's license

Perfect for

  • First-time OK CDL and CLP applicants
  • CDL holders adding endorsements
  • OK CDL renewal applicants

Helpful resources

OK CDL Handbook

View the most recent (2023) official OK CDL Handbook.

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OK CDL Practice Test App

Download our free iOS or Android app and practice for your driving test offline or on the go.

10 Things You Should Do Before Your Driving Knowledge Exam (PDF)

Many people do their best but still get to the DMV overconfident and underprepared because they fail to do some of the simple...

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OK commercial driver's license

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