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Free Colorado CDL General Knowledge Test (CO)

  • Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
  • Based on 2024 CO commercial driver's license manual
  • Updated for September 2024
Verified by Steven Litvintchouk, M.S., Chief Educational Researcher, Member of ACES. See our detailed commitment to accuracy and quality in our practice tests.
Commercial Driver's License

What you need to know

Available in EN and ES

Today, you will have an opportunity to test the knowledge you’ve learned from studying the Colorado Commercial Driver License Manual. From proper emergency equipment to drunk driving laws and backing procedures, you’ll be able to answer questions modeled closely on those from the real exam. Each of the 50 questions has multiple answers to choose from, as well as a hint and explanation. Reading the explanation can help you answer more questions about the topic on your real exam day, so read carefully. Good luck, and remember, practice makes perfect, so keep trying until you get that perfect score!

FAQs

What are the requirements you need to know?

To get a CDL license in Colorado, you need to obtain a commercial learner’s permit (CLP) by passing knowledge tests. Hold the CLP for at least 14 days before taking the skills test. You also need to meet age, medical, and residency requirements. CDL training, while not mandatory, is highly recommended.

What is the associated cost?

The cost for a CDL in Colorado includes a $16.80 fee for the CLP and varying fees for the skills test, typically around $275. The CDL license fee is $35. Additional costs for medical exams and training programs vary.

What can get you disqualified from being eligible?

In Colorado, disqualifications include major traffic offenses like DUIs or reckless driving, criminal convictions involving motor vehicles, and failing the medical examination required for CDL holders.

How long does the process take?

The time to get a CDL in Colorado varies. After holding a CLP for 14 days, the duration depends on your readiness and the length of any CDL training program you choose to enroll in.

How many times are you allowed to fail?

In Colorado, you can retake the CDL test if you fail, but after two failed attempts, additional fees will be required for subsequent tests. There is no set limit on the number of retakes.

Enhance your preparation with our comprehensive General Knowledge test collection, tailored to cover all key topics of the CDL exam. For a complete understanding of the expenses involved, check out our guide on CDL license cost, and for a step-by-step guide to getting your CDL, visit our CDL license guide.

What to expect on the actual exam

50

questions

40

correct answers to pass

80

passing score

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