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Practice quizzes / Washington CDL Combination Practice Questions - Washington CDL Combination Vehicles Test Exam / Question 201429
Practice question

How old must a Washington CDL driver be for interstate commercial operation?

  1. At least 16
  2. At least 21
  3. At least 18
  4. Any age with a CLP

Answer: B — At least 21

The correct answer is shown above. Try the full quiz for additional practice.

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