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CO CDL Passenger Vehicles Marathon

What to expect on the actual CO CDL exam

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

Ready for a challenge? This Colorado CDL Passenger Vehicles Marathon is a new study tool that contains a mix of all 118 questions that we have available for this CO endorsement. If you give an incorrect answer, we’ll remember that question and will display it to you again at the very end of the Marathon until you’ve answered that question correctly. In other words, the Marathon will cycle through your missed questions until you answer each one correctly. You must make a 100% to pass. We suggest you attempt this one after you have practiced the state’s “regular” tests, but before the “Exam”. Give it your best shot!

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CO commercial driver's license

Perfect for

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

Helpful resources

CO CDL Handbook

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

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CO 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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CO commercial driver's license

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