All your missed questions are saved
automatically for extra practice.
It's a practice test that's automatically made up of all your missed questions. Once you finish this test, you’ll be able to revisit your Challenge Bank™ to practice and sharpen your skills.
View All PlansAdding difficult questions to Challenge Bank™ is an exclusive Premium feature. Unlock access to 650+ exam-like questions, a Pass Guarantee, personalized study plans, and more.
View All Plans| 90-100 | => | 0% |
| 80-89 | => | 17% |
| 70-79 | => | 17% |
| 60-69 | => | 17% |
| <60% | => | 50% |
Are you ready to begin your commercial driving career in Colorado? Before you may apply for a Commercial Driver’s License (CDL), you must first get a Commercial Learner’s Permit (CLP). This process involves submitting proof of identity and Colorado residency, passing a vision test, and completing a DOT medical exam to operate in non-excepted commerce. One of the most important steps in the licensing process is passing the official written general knowledge exam, a 50-question test based on the official Colorado Commercial Driver License Manual (Colorado CDL Handbook 2026).
For a Class A CDL, you must also pass the official combination vehicles knowledge test. We also recommend passing the air brakes knowledge exam, as most commercial vehicles use air brake systems. Entry-Level Driver Training (ELDT) is a federal requirement mandated by FMCSA in all U.S. states and the District of Columbia. You must complete this training from a provider listed in FMCSA’s Training Provider Registry (TPR).
Mastering commercial driving theory doesn’t happen overnight. It requires repetition, understanding, and access to efficient tools that can boost your learning potential. Our Colorado CDL Class A Practice Test is an intuitive tool designed to help you become a better commercial driver. Its content and format closely reflect the official written knowledge exams, helping you prepare in advance. We update this practice test regularly (most recently for January 2026) to reflect the latest updates brought by DMV rules or state law. You will always practice with the latest version, but we recommend checking the official CO DMV website for the most up-to-date information.
M.S., Chief Educational Researcher (ACES member)
Last verified for accuracy on
With unlimited attempts and 24/7 access, there’s no limit to how often you can train with this practice test. You can use it while commuting to work, waiting in line, or after dinner. Start today and dedicate the following weeks to your learning phase. Keep track of your scores and watch your performance naturally improve with time.
Driver’s Ed is - nobody wants to set foot inside the DMV. That’s why millions of learners trust us for simple, visual, effective prep.
We are an officially recognized FMCSA Entry-Level Driver Training provider and a proud partner to over 2,500 libraries. We work with safety organizations like GHSA and the National Safety Council to help create safer roads for everyone.
Our trademarked system automatically saves questions you miss, creating personalized tests that target your weak spots until you’ve mastered the material.
Get smarter as you study. Our new AI-powered feedback provides detailed, question-level insights to help you understand the why behind each answer.
Go beyond the boring black-and-white manual. Our interactive handbook lets you read, listen with an MP3 audio version, or even chat with it to find the information you need, faster.
We build our practice questions from the current 2026 CO Driver Handbook and refine them using patterns recent test‑takers report.
Driver handbook • Knowledge‑test/permit overview • Fees & ID requirements • Office/appointment info
We mirror recurring themes (e.g., right‑of‑way traps, sign look‑alikes) and use similar distractors and wording styles.
We don’t collect or publish actual test items and we’re not affiliated with DMV.
