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SD CDL School Bus Marathon

Get ready for your SD 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.

Perfect for

  • First-time SD CDL and CLP applicants
  • CDL holders adding endorsements
  • SD CDL renewal applicants
SD commercial driver's license

What to expect on the actual exam

How many questions20
How many correct answers to pass16
Passing score80%
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